{"id":6446,"date":"2026-03-03T00:37:13","date_gmt":"2026-03-03T08:37:13","guid":{"rendered":"https:\/\/3waycatalyst.com\/?p=6446"},"modified":"2026-03-03T00:37:17","modified_gmt":"2026-03-03T08:37:17","slug":"three-way-catalytic-converter-obd-monitoring","status":"publish","type":"post","link":"https:\/\/3waycatalyst.com\/vi\/three-way-catalytic-converter-obd-monitoring\/","title":{"rendered":"B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u: 7 b\u00ed m\u1eadt quan tr\u1ecdng v\u1ec1 gi\u00e1m s\u00e1t OBD"},"content":{"rendered":"

Gi\u1edbi thi\u1ec7u<\/h2>\n\n\n\n

C\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> B\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i \u0111\u00f3ng vai tr\u00f2 trung t\u00e2m trong vi\u1ec7c ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i xe hi\u1ec7n \u0111\u1ea1i. C\u00e1c k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf n\u00f3 \u0111\u1ec3 gi\u1ea3m \u0111\u1ed3ng th\u1eddi hydrocarbon (HC), carbon monoxide (CO) v\u00e0 oxit nit\u01a1 (NOx). Tuy nhi\u00ean, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp. H\u1ec7 th\u1ed1ng ch\u1ea9n \u0111o\u00e1n tr\u00ean xe (OBD-II) li\u00ean t\u1ee5c \u0111\u00e1nh gi\u00e1 t\u00ecnh tr\u1ea1ng v\u00e0 hi\u1ec7u qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3.<\/p>\n\n\n\n

\u1ea2nh h\u01b0\u1edfng c\u1ee7a h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t OBD b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> H\u1ec7 th\u1ed1ng theo d\u00f5i hi\u1ec7u su\u1ea5t b\u1eb1ng c\u00e1ch gi\u00e1m s\u00e1t dung l\u01b0\u1ee3ng l\u01b0u tr\u1eef oxy (OSC) th\u00f4ng qua c\u00e1c c\u1ea3m bi\u1ebfn oxy \u1edf ph\u00eda tr\u01b0\u1edbc v\u00e0 ph\u00eda sau b\u1ed9 chuy\u1ec3n \u0111\u1ed5i. H\u1ec7 th\u1ed1ng kh\u00f4ng tr\u1ef1c ti\u1ebfp \u0111o l\u01b0\u1ee3ng kh\u00ed th\u1ea3i t\u1eeb \u1ed1ng x\u1ea3. Thay v\u00e0o \u0111\u00f3, n\u00f3 di\u1ec5n gi\u1ea3i c\u00e1c t\u00edn hi\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn v\u00e0 x\u00e1c \u0111\u1ecbnh xem b\u1ed9 chuy\u1ec3n \u0111\u1ed5i c\u00f3 ho\u1ea1t \u0111\u1ed9ng trong gi\u1edbi h\u1ea1n quy \u0111\u1ecbnh hay kh\u00f4ng. Khi hi\u1ec7u su\u1ea5t gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi ng\u01b0\u1ee1ng \u0111\u00e3 \u0111\u1ecbnh, h\u1ec7 th\u1ed1ng s\u1ebd k\u00edch ho\u1ea1t c\u00e1c m\u00e3 l\u1ed7i ch\u1ea9n \u0111o\u00e1n nh\u01b0 P0420.<\/p>\n\n\n\n

B\u00e0i vi\u1ebft n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch gi\u00e1m s\u00e1t OBD \u0111\u1ecbnh h\u00ecnh b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> N\u00f3 ph\u00e2n t\u00edch hi\u1ec7u su\u1ea5t, qu\u00e1 tr\u00ecnh x\u00e2y d\u1ef1ng, v\u1eadn h\u00e0nh, ch\u1ea9n \u0111o\u00e1n v\u00e0 s\u1ef1 t\u00edch h\u1ee3p v\u1edbi c\u00e1c quy \u0111\u1ecbnh. N\u00f3 c\u0169ng nghi\u00ean c\u1ee9u c\u00e1ch c\u00e1c chi\u1ebfn l\u01b0\u1ee3c gi\u00e1m s\u00e1t \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c quy\u1ebft \u0111\u1ecbnh b\u1ea3o tr\u00ec v\u00e0 \u0111\u1ed9 b\u1ec1n l\u00e2u d\u00e0i.<\/p>\n\n\n\n

L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/h2>\n\n\n\n

V\u00e0o gi\u1eefa nh\u1eefng n\u0103m 1970, c\u00e1c quy \u0111\u1ecbnh v\u1ec1 kh\u00ed th\u1ea3i \u0111\u00e3 l\u00e0m thay \u0111\u1ed5i ng\u00e0nh c\u00f4ng nghi\u1ec7p \u00f4 t\u00f4. \u0110\u1ea1o lu\u1eadt Kh\u00f4ng kh\u00ed S\u1ea1ch \u0111\u00e3 bu\u1ed9c c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ph\u1ea3i gi\u1ea3m thi\u1ec3u c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i. C\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ban \u0111\u1ea7u ch\u1ee7 y\u1ebfu t\u1eadp trung v\u00e0o c\u00e1c ph\u1ea3n \u1ee9ng oxy h\u00f3a \u0111\u1ec3 ki\u1ec3m so\u00e1t HC v\u00e0 CO. Sau \u0111\u00f3, c\u00e1c k\u1ef9 s\u01b0 \u0111\u00e3 c\u1ea3i ti\u1ebfn thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 kh\u00ed th\u1ea3i NOx.<\/p>\n\n\n\n

C\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u <\/a>Gi\u1ea3i ph\u00e1p n\u00e0y n\u1ed5i l\u00ean nh\u01b0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p c\u00f3 kh\u1ea3 n\u0103ng x\u1eed l\u00fd \u0111\u1ed3ng th\u1eddi c\u00e1c ph\u1ea3n \u1ee9ng oxy h\u00f3a v\u00e0 kh\u1eed. S\u1ef1 \u0111\u1ed5i m\u1edbi n\u00e0y \u0111\u00f2i h\u1ecfi s\u1ef1 ki\u1ec3m so\u00e1t nhi\u00ean li\u1ec7u ch\u00ednh x\u00e1c v\u00e0 t\u00edch h\u1ee3p c\u00e1c h\u1ec7 th\u1ed1ng ph\u1ea3n h\u1ed3i c\u1ea3m bi\u1ebfn oxy. K\u1ec3 t\u1eeb khi \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> \u0111\u00e3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c hi\u1ec7u ch\u1ec9nh \u0111\u1ed9ng c\u01a1, c\u1ea5u tr\u00fac h\u1ec7 th\u1ed1ng x\u1ea3 v\u00e0 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec7n t\u1eed.<\/p>\n\n\n\n

\"L\u1ecbch<\/a>
L\u1ecbch s\u1eed c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c\u2014\u2014Ti\u1ebfn h\u00f3a ba chi\u1ec1u03<\/a><\/figcaption><\/figure>\n\n\n\n

C\u1ea5u tr\u00fac c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/h2>\n\n\n\n

C\u00e1c k\u1ef9 s\u01b0 chia b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u <\/a>chia th\u00e0nh b\u1ed1n th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\n\n\n\n

    \n
  1. Nh\u00e0 \u1edf<\/li>\n\n\n\n
  2. Ch\u1ea5t n\u1ec1n<\/li>\n\n\n\n
  3. \u00c1o cho\u00e0ng gi\u1eb7t<\/li>\n\n\n\n
  4. Ch\u1ea5t x\u00fac t\u00e1c (kim lo\u1ea1i qu\u00fd)<\/li>\n<\/ol>\n\n\n\n

    Nh\u00e0 \u1edf<\/h3>\n\n\n\n

    C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng s\u1eed d\u1ee5ng th\u00e9p kh\u00f4ng g\u1ec9 ho\u1eb7c gang cho v\u1ecf thi\u1ebft b\u1ecb. V\u1ecf thi\u1ebft b\u1ecb ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao, chu k\u1ef3 nhi\u1ec7t nhanh v\u00e0 kh\u00ed th\u1ea3i \u0103n m\u00f2n. Th\u00e9p kh\u00f4ng g\u1ec9 gi\u00e3n n\u1edf \u0111\u00e1ng k\u1ec3 khi ch\u1ecbu nhi\u1ec7t. Do \u0111\u00f3, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng l\u1eafp \u0111\u1eb7t c\u00e1c t\u1ea5m ho\u1eb7c l\u01b0\u1edbi th\u00e9p ch\u1ed1ng ch\u00e1y gi\u1eefa v\u1ecf thi\u1ebft b\u1ecb v\u00e0 b\u1ec1 m\u1eb7t n\u1ec1n. Nh\u1eefng v\u1eadt li\u1ec7u n\u00e0y h\u1ea5p th\u1ee5 \u1ee9ng su\u1ea5t gi\u00e3n n\u1edf v\u00e0 ng\u0103n ng\u1eeba n\u1ee9t ho\u1eb7c t\u00e1ch r\u1eddi.<\/p>\n\n\n\n

    Ch\u1ea5t n\u1ec1n<\/h3>\n\n\n\n

    L\u1edbp n\u1ec1n t\u1ea1o th\u00e0nh khung b\u00ean trong. C\u00e1c thi\u1ebft k\u1ebf ban \u0111\u1ea7u s\u1eed d\u1ee5ng c\u00e1c l\u1edbp h\u1ea1t. C\u00e1c thi\u1ebft k\u1ebf hi\u1ec7n \u0111\u1ea1i d\u1ef1a tr\u00ean c\u00e1c kh\u1ed1i t\u1ed5 ong b\u1eb1ng g\u1ed1m ho\u1eb7c kim lo\u1ea1i. C\u00e1c l\u1edbp n\u1ec1n t\u1ed5 ong ban \u0111\u1ea7u c\u00f3 200 \u00f4 tr\u00ean m\u1ed7i inch vu\u00f4ng (cpsi). C\u00e1c thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng c\u00f3 400 cpsi tr\u1edf l\u00ean.<\/p>\n\n\n\n

    M\u1eadt \u0111\u1ed9 t\u1ebf b\u00e0o cao h\u01a1n l\u00e0m t\u0103ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t. Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t t\u0103ng l\u00ean gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 ph\u1ea3n \u1ee9ng v\u00e0 t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef oxy. S\u1ef1 c\u1ea3i thi\u1ec7n n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 nh\u1ea1y c\u1ee7a h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t OBD.<\/p>\n\n\n\n

    \u00c1o cho\u00e0ng gi\u1eb7t<\/h3>\n\n\n\n

    L\u1edbp ph\u1ee7 n\u00e0y bao ph\u1ee7 b\u1ec1 m\u1eb7t n\u1ec1n v\u00e0 l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac hi\u1ec7u qu\u1ea3. N\u00f3 ch\u1ee9a oxit nh\u00f4m v\u00e0 c\u00e1c v\u1eadt li\u1ec7u l\u01b0u tr\u1eef oxy nh\u01b0 oxit xeri. L\u1edbp ph\u1ee7 n\u00e0y cho ph\u00e9p c\u00e1c kim lo\u1ea1i qu\u00fd ph\u00e2n t\u00e1n \u0111\u1ec1u v\u00e0 duy tr\u00ec ho\u1ea1t t\u00ednh h\u00f3a h\u1ecdc.<\/p>\n\n\n\n

    Kim lo\u1ea1i qu\u00fd<\/h3>\n\n\n\n

    C\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u <\/a>Th\u00f4ng th\u01b0\u1eddng, h\u1ee3p kim n\u00e0y ch\u1ee9a b\u1ea1ch kim, paladi v\u00e0 rhodium. M\u1ed7i kim lo\u1ea1i \u0111\u1ea3m nhi\u1ec7m m\u1ed9t ch\u1ee9c n\u0103ng ri\u00eang bi\u1ec7t.<\/p>\n\n\n\n

    Kim lo\u1ea1i qu\u00fd<\/th>Ch\u1ee9c n\u0103ng ch\u00ednh<\/th>Lo\u1ea1i ph\u1ea3n \u1ee9ng<\/th><\/tr><\/thead>
    B\u1ea1ch kim (Pt)<\/td>Oxy h\u00f3a CO v\u00e0 HC<\/td>S\u1ef1 oxy h\u00f3a<\/td><\/tr>
    Paladi (Pd)<\/td>T\u0103ng c\u01b0\u1eddng qu\u00e1 tr\u00ecnh oxy h\u00f3a HC<\/td>S\u1ef1 oxy h\u00f3a<\/td><\/tr>
    Rhodium (Rh)<\/td>Gi\u1ea3m NOx<\/td>S\u1ef1 gi\u1ea3m b\u1edbt<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    Rhodium v\u1eabn l\u00e0 th\u00e0nh ph\u1ea7n \u0111\u1eaft nh\u1ea5t. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t li\u00ean t\u1ee5c \u0111i\u1ec1u ch\u1ec9nh t\u1ef7 l\u1ec7 c\u00e1c kim lo\u1ea1i \u0111\u1ec3 c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed v\u00e0 hi\u1ec7u su\u1ea5t ph\u00e1t th\u1ea3i.<\/p>\n\n\n\n

    \"B\u00ean<\/a>
    B\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c c\u00f3 g\u00ec? (Ph\u1ee5 t\u00f9ng & Kim lo\u1ea1i qu\u00fd)<\/a><\/figcaption><\/figure>\n\n\n\n

    Qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng h\u00f3a h\u1ecdc c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/h2>\n\n\n\n

    Ch\u1ea5t x\u00fac t\u00e1c l\u00e0m t\u0103ng t\u1ed1c c\u00e1c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc m\u00e0 kh\u00f4ng b\u1ecb ti\u00eau hao. b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> Th\u1ef1c hi\u1ec7n hai lo\u1ea1i ph\u1ea3n \u1ee9ng thi\u1ebft y\u1ebfu.<\/p>\n\n\n\n

    Ph\u1ea3n \u1ee9ng oxy h\u00f3a<\/h3>\n\n\n\n

    2CO + O2 \u2192 2CO2 HC + O2 \u2192 CO2 + H2O<\/p>\n\n\n\n

    C\u00e1c ph\u1ea3n \u1ee9ng n\u00e0y chuy\u1ec3n h\u00f3a kh\u00ed \u0111\u1ed9c th\u00e0nh c\u00e1c h\u1ee3p ch\u1ea5t \u00edt \u0111\u1ed9c h\u1ea1i h\u01a1n.<\/p>\n\n\n\n

    Ph\u1ea3n \u1ee9ng kh\u1eed<\/h3>\n\n\n\n

    2CO + NOx \u2192 2CO2 + N2 HC + NO \u2192 CO2 + H2O + N2<\/p>\n\n\n\n

    Qu\u00e1 tr\u00ecnh kh\u1eed lo\u1ea1i b\u1ecf oxy kh\u1ecfi oxit nit\u01a1 v\u00e0 gi\u1ea3i ph\u00f3ng kh\u00ed nit\u01a1. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 nh\u1ea5t khi t\u1ef7 l\u1ec7 kh\u00f4ng kh\u00ed-nhi\u00ean li\u1ec7u g\u1ea7n v\u1edbi t\u1ef7 l\u1ec7 l\u00fd t\u01b0\u1edfng. M\u00f4-\u0111un \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 duy tr\u00ec s\u1ef1 c\u00e2n b\u1eb1ng n\u00e0y th\u00f4ng qua ph\u1ea3n h\u1ed3i t\u1eeb c\u1ea3m bi\u1ebfn oxy.<\/p>\n\n\n\n

    C\u1ea3m bi\u1ebfn oxy v\u00e0 chi\u1ebfn l\u01b0\u1ee3c nhi\u00ean li\u1ec7u<\/h2>\n\n\n\n

    B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean s\u1ef1 dao \u0111\u1ed9ng nhanh c\u1ee7a t\u1ef7 l\u1ec7 kh\u00f4ng kh\u00ed-nhi\u00ean li\u1ec7u. C\u00e1c c\u1ea3m bi\u1ebfn oxy t\u1ea1o ra t\u00edn hi\u1ec7u \u0111i\u1ec7n \u00e1p ph\u1ea3n \u00e1nh n\u1ed3ng \u0111\u1ed9 oxy trong kh\u00ed th\u1ea3i.<\/p>\n\n\n\n

    C\u1ea3m bi\u1ebfn ph\u00eda th\u01b0\u1ee3ng ngu\u1ed3n \u0111i\u1ec1u khi\u1ec3n h\u1ed7n h\u1ee3p nhi\u00ean li\u1ec7u. C\u1ea3m bi\u1ebfn ph\u00eda h\u1ea1 ngu\u1ed3n \u0111\u00e1nh gi\u00e1 hi\u1ec7u qu\u1ea3 c\u1ee7a ch\u1ea5t x\u00fac t\u00e1c. Khi \u0111i\u1ec7n \u00e1p c\u1ee7a c\u1ea3m bi\u1ebfn ph\u00eda th\u01b0\u1ee3ng ngu\u1ed3n t\u0103ng l\u00ean, h\u1ed7n h\u1ee3p tr\u1edf n\u00ean gi\u00e0u nhi\u00ean li\u1ec7u. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh kh\u1eed NOx. Khi \u0111i\u1ec7n \u00e1p gi\u1ea3m xu\u1ed1ng, h\u1ed7n h\u1ee3p tr\u1edf n\u00ean ngh\u00e8o nhi\u00ean li\u1ec7u. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c oxy h\u00f3a HC v\u00e0 CO.<\/p>\n\n\n\n

    Cerium trong l\u1edbp ph\u1ee7 t\u1ea1m th\u1eddi l\u01b0u tr\u1eef oxy. Kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef oxy n\u00e0y cho ph\u00e9p b\u1ed9 chuy\u1ec3n \u0111\u1ed5i gi\u1ea3m thi\u1ec3u s\u1ef1 dao \u0111\u1ed9ng v\u00e0 \u1ed5n \u0111\u1ecbnh n\u1ed3ng \u0111\u1ed9 oxy \u1edf ph\u00eda h\u1ea1 l\u01b0u.<\/p>\n\n\n\n

    Chi\u1ebfn l\u01b0\u1ee3c gi\u00e1m s\u00e1t OBD-II<\/h2>\n\n\n\n

    Quy \u0111\u1ecbnh OBD-II y\u00eau c\u1ea7u gi\u00e1m s\u00e1t li\u00ean t\u1ee5c hi\u1ec7u qu\u1ea3 c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c. H\u1ec7 th\u1ed1ng so s\u00e1nh t\u00edn hi\u1ec7u c\u1ea3m bi\u1ebfn oxy \u1edf ph\u00eda tr\u01b0\u1edbc v\u00e0 ph\u00eda sau b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c.<\/p>\n\n\n\n

    M\u1ed9t s\u1ee9c kh\u1ecfe t\u1ed1t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> L\u00e0m gi\u1ea3m s\u1ef1 dao \u0111\u1ed9ng oxy. C\u1ea3m bi\u1ebfn ph\u00eda h\u1ea1 l\u01b0u cho th\u1ea5y s\u1ef1 chuy\u1ec3n m\u1ea1ch \u1ed5n \u0111\u1ecbnh v\u00e0 ch\u1eadm h\u01a1n. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i b\u1ecb l\u1ed7i kh\u00f4ng th\u1ec3 \u0111\u1ec7m oxy hi\u1ec7u qu\u1ea3. T\u00edn hi\u1ec7u ph\u00eda h\u1ea1 l\u01b0u b\u1eaft \u0111\u1ea7u gi\u1ed1ng v\u1edbi t\u00edn hi\u1ec7u ph\u00eda th\u01b0\u1ee3ng l\u01b0u v\u1ec1 t\u1ea7n s\u1ed1 v\u00e0 bi\u00ean \u0111\u1ed9.<\/p>\n\n\n\n

    C\u00e1c k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf thu\u1eadt to\u00e1n \u0111\u1ec3 ph\u00e2n t\u00edch t\u1ea7n s\u1ed1 t\u00edn hi\u1ec7u, bi\u00ean \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 chuy\u1ec3n m\u1ea1ch. Khi hi\u1ec7u su\u1ea5t gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi gi\u1edbi h\u1ea1n quy \u0111\u1ecbnh, h\u1ec7 th\u1ed1ng s\u1ebd k\u00edch ho\u1ea1t \u0111\u00e8n b\u00e1o l\u1ed7i v\u00e0 l\u01b0u tr\u1eef m\u00e3 ch\u1ea9n \u0111o\u00e1n.<\/p>\n\n\n\n

    M\u00e3 l\u1ed7i ch\u1ea9n \u0111o\u00e1n th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n

    C\u00e1c m\u00e3 l\u1ed7i li\u00ean quan \u0111\u1ebfn ch\u1ea5t x\u00fac t\u00e1c th\u01b0\u1eddng g\u1eb7p nh\u1ea5t bao g\u1ed3m:<\/p>\n\n\n\n

    M\u00e3 s\u1ed1<\/th>S\u1ef1 mi\u00eau t\u1ea3<\/th><\/tr><\/thead>
    P0420<\/td>Hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng x\u00fac t\u00e1c d\u01b0\u1edbi ng\u01b0\u1ee1ng (Ng\u00e2n h\u00e0ng 1)<\/td><\/tr>
    P0430<\/td>Hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng x\u00fac t\u00e1c d\u01b0\u1edbi ng\u01b0\u1ee1ng (Ng\u00e2n h\u00e0ng 2)<\/td><\/tr>
    P0421<\/td>Hi\u1ec7u su\u1ea5t ch\u1ea5t x\u00fac t\u00e1c khi kh\u1edfi \u0111\u1ed9ng d\u01b0\u1edbi ng\u01b0\u1ee1ng<\/td><\/tr>
    P0431<\/td>Hi\u1ec7u su\u1ea5t ch\u1ea5t x\u00fac t\u00e1c kh\u1edfi \u0111\u1ed9ng d\u01b0\u1edbi ng\u01b0\u1ee1ng (Ng\u00e2n h\u00e0ng 2)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    M\u00e3 l\u1ed7i P0420 xu\u1ea5t hi\u1ec7n th\u01b0\u1eddng xuy\u00ean nh\u1ea5t. N\u00f3 cho th\u1ea5y l\u01b0\u1ee3ng oxy d\u1ef1 tr\u1eef kh\u00f4ng \u0111\u1ee7 ho\u1eb7c hi\u1ec7u qu\u1ea3 oxy h\u00f3a b\u1ecb gi\u1ea3m.<\/p>\n\n\n\n

    M\u00f4 h\u00ecnh h\u00f3a nhi\u1ec7t \u0111\u1ed9 ch\u1ea5t x\u00fac t\u00e1c<\/h2>\n\n\n\n

    Nhi\u1ec7t \u0111\u1ed9 c\u00f3 \u1ea3nh h\u01b0\u1edfng m\u1ea1nh m\u1ebd b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u <\/a>hi\u1ec7u su\u1ea5t. B\u1ed9 chuy\u1ec3n \u0111\u1ed5i ph\u1ea3i \u0111\u1ea1t \u0111\u1ebfn nhi\u1ec7t \u0111\u1ed9 b\u1eaft \u0111\u1ea7u ph\u1ea3n \u1ee9ng tr\u01b0\u1edbc khi c\u00e1c ph\u1ea3n \u1ee9ng di\u1ec5n ra hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

    H\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng kh\u00f4ng l\u1eafp \u0111\u1eb7t c\u1ea3m bi\u1ebfn nhi\u1ec7t \u0111\u1ed9 tr\u1ef1c ti\u1ebfp. Thay v\u00e0o \u0111\u00f3, m\u00f4-\u0111un \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 \u01b0\u1edbc t\u00ednh nhi\u1ec7t \u0111\u1ed9 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed, t\u1ea3i tr\u1ecdng \u0111\u1ed9ng c\u01a1, nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc l\u00e0m m\u00e1t v\u00e0 t\u1ed1c \u0111\u1ed9 xe. H\u1ec7 th\u1ed1ng ch\u1ec9 gi\u00e1m s\u00e1t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c khi nhi\u1ec7t \u0111\u1ed9 \u01b0\u1edbc t\u00ednh v\u01b0\u1ee3t qu\u00e1 ng\u01b0\u1ee1ng \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec7u ch\u1ec9nh. Chi\u1ebfn l\u01b0\u1ee3c n\u00e0y gi\u00fap tr\u00e1nh ph\u00e1t hi\u1ec7n l\u1ed7i sai.<\/p>\n\n\n\n

    \u1ea2nh h\u01b0\u1edfng c\u1ee7a d\u00f2ng kh\u00ed th\u1ea3i<\/h2>\n\n\n\n

    L\u01b0u l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 h\u1ea5p th\u1ee5 v\u00e0 gi\u1ea3i ph\u00f3ng oxy. L\u01b0u l\u01b0\u1ee3ng cao l\u00e0m t\u0103ng t\u1ea7n s\u1ed1 chuy\u1ec3n \u0111\u1ed5i oxy. C\u1ea3m bi\u1ebfn ph\u00eda sau c\u00f3 th\u1ec3 cho th\u1ea5y ho\u1ea1t \u0111\u1ed9ng cao h\u01a1n ngay c\u1ea3 khi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i v\u1eabn ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n

    Do \u0111\u00f3, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ti\u1ebfn h\u00e0nh gi\u00e1m s\u00e1t trong \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. \u0110i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh \u1edf t\u1ed1c \u0111\u1ed9 t\u1eeb 40 \u0111\u1ebfn 60 d\u1eb7m\/gi\u1edd v\u00e0 t\u1ea3i tr\u1ecdng \u0111\u1ed9ng c\u01a1 \u1ed5n \u0111\u1ecbnh. B\u1ed9 ph\u1eadn gi\u00e1m s\u00e1t ch\u1ea5t x\u00fac t\u00e1c th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng sau khi c\u00e1c b\u1ed9 ph\u1eadn gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng kh\u00e1c ho\u00e0n t\u1ea5t.<\/p>\n\n\n\n

    Ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 c\u1ee7a gi\u00e1m s\u00e1t OBD<\/h2>\n\n\n\n

    H\u1ec7 th\u1ed1ng OBD b\u1ea3o v\u1ec7 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> T\u1eeb h\u01b0 h\u1ecfng do nhi\u1ec7t. H\u1ec7 th\u1ed1ng ph\u00e1t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e1nh l\u1eeda sai, \u0111\u1ed9 l\u1ec7ch \u0111i\u1ec1u ch\u1ec9nh nhi\u00ean li\u1ec7u qu\u00e1 m\u1ee9c v\u00e0 nhi\u00ean li\u1ec7u ch\u01b0a ch\u00e1y \u0111i v\u00e0o d\u00f2ng kh\u00ed th\u1ea3i.<\/p>\n\n\n\n

    Nhi\u00ean li\u1ec7u ch\u01b0a ch\u00e1y h\u1ebft c\u00f3 th\u1ec3 l\u00e0m qu\u00e1 nhi\u1ec7t ch\u1ea5t x\u00fac t\u00e1c v\u00e0 g\u00e2y ch\u1ea3y ch\u1ea5t n\u1ec1n. M\u00f4-\u0111un \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 s\u1ebd ph\u1ea3n \u1ee9ng b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ec9nh l\u01b0\u1ee3ng phun nhi\u00ean li\u1ec7u ho\u1eb7c v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c xi-lanh c\u1ee5 th\u1ec3 trong tr\u01b0\u1eddng h\u1ee3p nghi\u00eam tr\u1ecdng. Ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 n\u00e0y gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd ch\u1ea5t x\u00fac t\u00e1c v\u00e0 gi\u1ea3m thi\u1ec3u c\u00e1c s\u1ef1 c\u1ed1 t\u1ed1n k\u00e9m.<\/p>\n\n\n\n

    C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ea9n \u0111o\u00e1n t\u1ed1t nh\u1ea5t<\/h2>\n\n\n\n

    K\u1ef9 thu\u1eadt vi\u00ean kh\u00f4ng n\u00ean thay th\u1ebf ngay l\u1eadp t\u1ee9c m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> Sau khi m\u00e3 l\u1ed7i P0420 xu\u1ea5t hi\u1ec7n, c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00e1c c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra l\u1ed7i. C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn bao g\u1ed3m r\u00f2 r\u1ec9 kh\u00ed th\u1ea3i, c\u1ea3m bi\u1ebfn oxy b\u1ecb l\u1ed7i, m\u1ea5t c\u00e2n b\u1eb1ng h\u1ec7 th\u1ed1ng nhi\u00ean li\u1ec7u ho\u1eb7c hi\u1ec7u ch\u1ec9nh ph\u1ea7n m\u1ec1m l\u1ed7i th\u1eddi.<\/p>\n\n\n\n

    C\u00e1c k\u1ef9 thu\u1eadt vi\u00ean n\u00ean so s\u00e1nh d\u1ea1ng s\u00f3ng c\u1ee7a c\u1ea3m bi\u1ebfn oxy \u1edf ph\u00eda tr\u01b0\u1edbc v\u00e0 ph\u00eda sau trong \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng gi\u1ed1ng h\u1ec7t nhau. T\u1ef7 l\u1ec7 chuy\u1ec3n m\u1ea1ch g\u1ea7n b\u1eb1ng 1:1 th\u01b0\u1eddng cho th\u1ea5y kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef oxy b\u1ecb gi\u1ea3m.<\/p>\n\n\n\n

    \u0110\u00f4i khi c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t ph\u00e1t h\u00e0nh c\u00e1c b\u1ea3n tin d\u1ecbch v\u1ee5 k\u1ef9 thu\u1eadt y\u00eau c\u1ea7u l\u1eadp tr\u00ecnh l\u1ea1i m\u00f4-\u0111un \u0111i\u1ec1u khi\u1ec3n thay v\u00ec thay th\u1ebf ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n

    Gi\u00e1m s\u00e1t n\u00e2ng cao v\u00e0 s\u1ef1 ph\u00e1t tri\u1ec3n h\u1ec7 th\u1ed1ng<\/h2>\n\n\n\n

    C\u00e1c ph\u01b0\u01a1ng ti\u1ec7n hi\u1ec7n \u0111\u1ea1i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng hai kh\u1ed1i v\u1edbi ch\u1ea5t x\u00fac t\u00e1c l\u00e0m n\u00f3ng g\u1ea7n \u1ed1ng x\u1ea3 v\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ch\u00ednh \u1edf ph\u00eda h\u1ea1 l\u01b0u. M\u1ed7i kh\u1ed1i s\u1eed d\u1ee5ng c\u1ea5u tr\u00fac ch\u1ea5t n\u1ec1n v\u00e0 th\u00e0nh ph\u1ea7n kim lo\u1ea1i kh\u00e1c nhau. C\u00e1c chi\u1ebfn l\u01b0\u1ee3c gi\u00e1m s\u00e1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh cho ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n

    Ph\u1ea7n m\u1ec1m ti\u00ean ti\u1ebfn m\u00f4 ph\u1ecfng \u0111\u1ed9ng l\u1ef1c l\u01b0u tr\u1eef oxy b\u1eb1ng to\u00e1n h\u1ecdc. C\u00e1c k\u1ef9 s\u01b0 \u00e1p d\u1ee5ng ph\u00e2n t\u00edch t\u01b0\u01a1ng quan t\u1ea7n s\u1ed1 \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ch\u00ednh x\u00e1c ph\u00e1t hi\u1ec7n. Nh\u1eefng chi\u1ebfn l\u01b0\u1ee3c n\u00e0y gi\u00fap t\u0103ng \u0111\u1ed9 nh\u1ea1y \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u k\u1ebft qu\u1ea3 d\u01b0\u01a1ng t\u00ednh gi\u1ea3.<\/p>\n\n\n\n

    T\u00e1c \u0111\u1ed9ng \u0111\u1ebfn vi\u1ec7c tu\u00e2n th\u1ee7 quy \u0111\u1ecbnh kh\u00ed th\u1ea3i v\u00e0 v\u00f2ng \u0111\u1eddi c\u1ee7a xe<\/h2>\n\n\n\n

    Vi\u1ec7c gi\u00e1m s\u00e1t OBD \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> H\u1ec7 th\u1ed1ng n\u00e0y duy tr\u00ec s\u1ef1 tu\u00e2n th\u1ee7 trong su\u1ed1t v\u00f2ng \u0111\u1eddi ho\u1ea1t \u0111\u1ed9ng c\u1ee7a xe. N\u00f3 gi\u00fap ph\u00e1t hi\u1ec7n s\u1edbm s\u1ef1 xu\u1ed1ng c\u1ea5p. N\u00f3 ng\u0103n ng\u1eeba vi\u1ec7c ph\u00e1t th\u1ea3i ch\u1ea5t \u00f4 nhi\u1ec5m qu\u00e1 m\u1ee9c. N\u00f3 gi\u1ea3m chi ph\u00ed b\u1ea3o tr\u00ec d\u00e0i h\u1ea1n. N\u00f3 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 kh\u00ed th\u1ea3i.<\/p>\n\n\n\n

    N\u1ebfu kh\u00f4ng c\u00f3 s\u1ef1 gi\u00e1m s\u00e1t c\u1ee7a h\u1ec7 th\u1ed1ng OBD, b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c c\u00f3 th\u1ec3 b\u1ecb xu\u1ed1ng c\u1ea5p m\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n v\u00e0 th\u1ea3i ra l\u01b0\u1ee3ng l\u1edbn kh\u00ed \u0111\u1ed9c h\u1ea1i. Gi\u00e1m s\u00e1t li\u00ean t\u1ee5c gi\u00fap b\u1ea3o v\u1ec7 c\u1ea3 ch\u1ea5t l\u01b0\u1ee3ng m\u00f4i tr\u01b0\u1eddng v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a \u0111\u1ed9ng c\u01a1.<\/p>\n\n\n\n

    Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n\n\n\n

    C\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u <\/a>N\u00f3 t\u1ea1o th\u00e0nh c\u1ed1t l\u00f5i c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i hi\u1ec7n \u0111\u1ea1i. N\u00f3 \u0111\u1ed3ng th\u1eddi oxy h\u00f3a hydrocarbon v\u00e0 carbon monoxide trong khi kh\u1eed oxit nit\u01a1. Tuy nhi\u00ean, hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3 ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t OBD.<\/p>\n\n\n\n

    H\u1ec7 th\u1ed1ng OBD-II \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef oxy b\u1eb1ng c\u00e1ch so s\u00e1nh ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea3m bi\u1ebfn ph\u00eda tr\u01b0\u1edbc v\u00e0 ph\u00eda sau. M\u00f4-\u0111un \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 ph\u00e2n t\u00edch t\u1ea7n s\u1ed1 chuy\u1ec3n m\u1ea1ch, t\u01b0\u01a1ng quan t\u00edn hi\u1ec7u v\u00e0 nhi\u1ec7t \u0111\u1ed9 \u01b0\u1edbc t\u00ednh. Khi hi\u1ec7u su\u1ea5t gi\u1ea3m xu\u1ed1ng d\u01b0\u1edbi gi\u1edbi h\u1ea1n \u0111\u00e3 \u0111\u1ecbnh, h\u1ec7 th\u1ed1ng s\u1ebd k\u00edch ho\u1ea1t m\u00e3 l\u1ed7i ch\u1ea9n \u0111o\u00e1n v\u00e0 c\u1ea3nh b\u00e1o ng\u01b0\u1eddi l\u00e1i.<\/p>\n\n\n\n

    C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t t\u00edch h\u1ee3p m\u00f4 h\u00ecnh lu\u1ed3ng kh\u00f4ng kh\u00ed, \u01b0\u1edbc t\u00ednh nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c hi\u1ec7u chu\u1ea9n \u0111\u1ec3 ng\u0103n ng\u1eeba c\u00e1c l\u1ed7i sai. Nh\u1eefng chi\u1ebfn l\u01b0\u1ee3c n\u00e0y b\u1ea3o v\u1ec7 ch\u1ea5t x\u00fac t\u00e1c kh\u1ecfi qu\u00e1 nhi\u1ec7t, \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 kh\u00ed th\u1ea3i v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd.<\/p>\n\n\n\n

    C\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u<\/a> H\u1ec7 th\u1ed1ng OBD v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t m\u1ea1ng l\u01b0\u1edbi th\u1ed1ng nh\u1ea5t. C\u00f9ng nhau, ch\u00fang gi\u1ea3m thi\u1ec3u \u00f4 nhi\u1ec5m, duy tr\u00ec c\u00e1c ti\u00eau chu\u1ea9n quy \u0111\u1ecbnh v\u00e0 b\u1ea3o \u0111\u1ea3m hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng l\u00e2u d\u00e0i c\u1ee7a xe.<\/p>","protected":false},"excerpt":{"rendered":"

    H\u1ec7 th\u1ed1ng OBD gi\u00e1m s\u00e1t hi\u1ec7u su\u1ea5t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u b\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef oxy v\u00e0 t\u00edn hi\u1ec7u c\u1ea3m bi\u1ebfn \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh v\u1ec1 kh\u00ed th\u1ea3i v\u00e0 ng\u0103n ng\u1eeba h\u1ecfng h\u00f3c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c.<\/p>","protected":false},"author":1,"featured_media":6447,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowgdPcCw:productID":"","footnotes":""},"categories":[98],"tags":[1288,1532,1520,1693,1694,1695,1541,99],"class_list":["post-6446","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","tag-catalyst-efficiency","tag-catalytic-converter-performance","tag-emission-control-system","tag-obd-monitoring-system","tag-obd-ii-diagnostics-2","tag-oxygen-storage-capacity","tag-p0420-code","tag-three-way-catalytic-converter-2"],"_links":{"self":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts\/6446","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/comments?post=6446"}],"version-history":[{"count":1,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts\/6446\/revisions"}],"predecessor-version":[{"id":6448,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts\/6446\/revisions\/6448"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/media\/6447"}],"wp:attachment":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/media?parent=6446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/categories?post=6446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/tags?post=6446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}