{"id":5503,"date":"2025-09-25T19:51:47","date_gmt":"2025-09-26T03:51:47","guid":{"rendered":"https:\/\/3waycatalyst.com\/?p=5503"},"modified":"2025-09-26T01:33:23","modified_gmt":"2025-09-26T09:33:23","slug":"six-signs-of-catalytic-converter-failure-how-to-diagnose-fix","status":"publish","type":"post","link":"https:\/\/3waycatalyst.com\/vi\/six-signs-of-catalytic-converter-failure-how-to-diagnose-fix\/","title":{"rendered":"S\u00e1u d\u1ea5u hi\u1ec7u cho th\u1ea5y b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb h\u1ecfng: C\u00e1ch ch\u1ea9n \u0111o\u00e1n v\u00e0 kh\u1eafc ph\u1ee5c"},"content":{"rendered":"

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i c\u00e1c ch\u1ea5t \u00f4 nhi\u1ec5m nh\u01b0 hydrocarbon, carbon monoxide v\u00e0 nit\u01a1 oxit (NOx) th\u00e0nh c\u00e1c kh\u00ed \u00edt \u0111\u1ed9c h\u1ea1i h\u01a1n nh\u01b0 carbon dioxide v\u00e0 n\u01b0\u1edbc. Khi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1eaft \u0111\u1ea7u h\u01b0 h\u1ecfng, hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1, hi\u1ec7u su\u1ea5t nhi\u00ean li\u1ec7u v\u00e0 kh\u1ea3 n\u0103ng v\u01b0\u1ee3t qua c\u00e1c b\u00e0i ki\u1ec3m tra kh\u00ed th\u1ea3i \u0111\u1ec1u b\u1ecb \u1ea3nh h\u01b0\u1edfng. Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd xem x\u00e9t s\u00e1u d\u1ea5u hi\u1ec7u \u0111i\u1ec3n h\u00ecnh cho th\u1ea5y b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c g\u1eb7p s\u1ef1 c\u1ed1, t\u1ea7m quan tr\u1ecdng c\u1ee7a nh\u1eefng d\u1ea5u hi\u1ec7u n\u00e0y v\u00e0 nh\u1eefng ki\u1ec3m tra quan tr\u1ecdng c\u1ea7n th\u1ef1c hi\u1ec7n tr\u01b0\u1edbc khi c\u00e2n nh\u1eafc thay th\u1ebf.<\/p>\n\n\n\n

1. T\u1ea1i sao b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c l\u1ea1i quan tr\u1ecdng \u0111\u1ebfn v\u1eady?<\/h2>\n\n\n\n

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c l\u00e0 thi\u1ebft b\u1ecb ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i kh\u00f4ng th\u1ec3 thi\u1ebfu tr\u00ean m\u1ecdi lo\u1ea1i xe hi\u1ec7n \u0111\u1ea1i. S\u1eed d\u1ee5ng ch\u1ea5t x\u00fac t\u00e1c (th\u01b0\u1eddng \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh t\u1eeb c\u00e1c kim lo\u1ea1i qu\u00fd nh\u01b0 b\u1ea1ch kim, pala\u0111i v\u00e0 rhodi), n\u00f3 oxy h\u00f3a hydrocarbon (HC) v\u00e0 carbon monoxide, \u0111\u1ed3ng th\u1eddi l\u00e0m gi\u1ea3m oxit nit\u01a1, do \u0111\u00f3 gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i c\u1ee7a \u0111\u1ed9ng c\u01a1. N\u1ebfu kh\u00f4ng c\u00f3 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c, kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i s\u1ebd \u0111\u01b0\u1ee3c th\u1ea3i tr\u1ef1c ti\u1ebfp v\u00e0o kh\u00f4ng kh\u00ed, kh\u00f4ng \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i v\u00e0 g\u00e2y nguy hi\u1ec3m cho m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n

Khi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb tr\u1ee5c tr\u1eb7c, n\u00f3 kh\u00f4ng ch\u1ec9 th\u1ea3i ra nhi\u1ec1u ch\u1ea5t \u0111\u1ed9c h\u1ea1i h\u01a1n m\u00e0 c\u00f2n g\u00e2y h\u1ea1i cho \u0111\u1ed9ng c\u01a1 v\u00e0 h\u1ec7 th\u1ed1ng x\u1ea3. Hi\u1ec3u \u0111\u01b0\u1ee3c t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3 s\u1ebd gi\u00fap ng\u01b0\u1eddi l\u00e1i xe x\u1eed l\u00fd \u0111\u00fang c\u00e1ch n\u1ebfu b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb h\u1ecfng.<\/p>\n\n\n\n

2. D\u1ea5u hi\u1ec7u 1: \u0110\u00e8n ki\u1ec3m tra \u0111\u1ed9ng c\u01a1 li\u00ean t\u1ee5c s\u00e1ng<\/h2>\n\n\n\n

M\u1ed9t trong nh\u1eefng d\u1ea5u hi\u1ec7u s\u1edbm nh\u1ea5t c\u1ee7a s\u1ef1 c\u1ed1 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c l\u00e0 \u0111\u00e8n b\u00e1o ki\u1ec3m tra \u0111\u1ed9ng c\u01a1. C\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n hi\u1ec7n \u0111\u1ea1i d\u1ef1a v\u00e0o c\u1ea3m bi\u1ebfn oxy \u0111\u1ec3 theo d\u00f5i th\u00e0nh ph\u1ea7n kh\u00ed th\u1ea3i. Khi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c kh\u00f4ng oxy h\u00f3a carbon monoxide ho\u1eb7c gi\u1ea3m NOx \u0111\u00fang c\u00e1ch, c\u00e1c c\u1ea3m bi\u1ebfn s\u1ebd g\u1eedi m\u00e3 l\u1ed7i \u0111\u1ebfn b\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 (ECU).<\/p>\n\n\n\n

M\u00e3 ph\u1ed5 bi\u1ebfn nh\u1ea5t li\u00ean quan \u0111\u1ebfn v\u1ea5n \u0111\u1ec1 n\u00e0y l\u00e0 P0420 \u2014 \u201cHi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng x\u00fac t\u00e1c d\u01b0\u1edbi ng\u01b0\u1ee1ng.\u201d<\/strong> N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft, m\u1ee9c kh\u00ed th\u1ea3i s\u1ebd t\u0103ng l\u00ean v\u00e0 xe c\u1ee7a b\u1ea1n c\u00f3 th\u1ec3 kh\u00f4ng v\u01b0\u1ee3t qua \u0111\u01b0\u1ee3c b\u00e0i ki\u1ec3m tra kh\u00ed th\u1ea3i b\u1eaft bu\u1ed9c.<\/p>\n\n\n\n

3. D\u1ea5u hi\u1ec7u 2: Hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1 k\u00e9m v\u00e0 t\u0103ng t\u1ed1c ch\u1eadm<\/h2>\n\n\n\n

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb t\u1eafc s\u1ebd h\u1ea1n ch\u1ebf d\u00f2ng kh\u00ed th\u1ea3i. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra \u00e1p su\u1ea5t ng\u01b0\u1ee3c b\u00ean trong h\u1ec7 th\u1ed1ng x\u1ea3, l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111\u1ed1t trong. Ng\u01b0\u1eddi l\u00e1i xe c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y kh\u1ea3 n\u0103ng t\u0103ng t\u1ed1c ch\u1eadm ch\u1ea1p, c\u00f4ng su\u1ea5t gi\u1ea3m khi l\u00ean d\u1ed1c, ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 \u0111\u1ed9ng c\u01a1 b\u1ecb ch\u1ebft m\u00e1y.<\/p>\n\n\n\n

Do \u0111\u1ed9ng c\u01a1 kh\u00f4ng th\u1ec3 th\u1ea3i kh\u00ed th\u1ea3i hi\u1ec7u qu\u1ea3, n\u00f3 g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c n\u1ea1p kh\u00ed s\u1ea1ch v\u00e0 x\u0103ng. S\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng n\u00e0y d\u1eabn \u0111\u1ebfn hi\u1ec7u su\u1ea5t k\u00e9m, m\u1ee9c ti\u00eau th\u1ee5 nhi\u00ean li\u1ec7u cao h\u01a1n v\u00e0 kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i.<\/p>\n\n\n\n

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<\/figcaption><\/figure>\n\n\n\n

4. D\u1ea5u hi\u1ec7u 3: Ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u gi\u1ea3m<\/h2>\n\n\n\n

N\u1ebfu b\u1ea1n \u0111\u1ed9t nhi\u00ean th\u1ea5y m\u00ecnh ph\u1ea3i \u0111\u1ed5 x\u0103ng th\u01b0\u1eddng xuy\u00ean h\u01a1n, nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 l\u00e0 do b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb l\u1ed7i. Khi kh\u00ed th\u1ea3i kh\u00f4ng di chuy\u1ec3n tr\u01a1n tru qua \u1ed1ng x\u1ea3 v\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i, \u0111\u1ed9ng c\u01a1 s\u1ebd ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng nhi\u1ec1u h\u01a1n v\u00e0 \u0111\u1ed1t ch\u00e1y nhi\u1ec1u x\u0103ng h\u01a1n.<\/p>\n\n\n\n

Ngo\u00e0i ra, qu\u00e1 tr\u00ecnh oxy h\u00f3a hydrocarbon v\u00e0 carbon monoxide kh\u00f4ng hi\u1ec7u qu\u1ea3 \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c l\u00e3ng ph\u00ed n\u0103ng l\u01b0\u1ee3ng trong qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y. Tri\u1ec7u ch\u1ee9ng n\u00e0y ban \u0111\u1ea7u c\u00f3 th\u1ec3 kh\u00f3 nh\u1eadn th\u1ea5y nh\u01b0ng s\u1ebd ng\u00e0y c\u00e0ng t\u1ed1n k\u00e9m h\u01a1n theo th\u1eddi gian.<\/p>\n\n\n\n

5. D\u1ea5u hi\u1ec7u 4: M\u00f9i tr\u1ee9ng th\u1ed1i ho\u1eb7c m\u00f9i l\u01b0u hu\u1ef3nh<\/h2>\n\n\n\n

M\u00f9i "tr\u1ee9ng th\u1ed1i" \u0111\u1eb7c tr\u01b0ng c\u0169ng l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o kh\u00e1c. M\u00f9i n\u00e0y \u0111\u1ebfn t\u1eeb hydro sunfua trong kh\u00ed th\u1ea3i, v\u1ed1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c chuy\u1ec3n h\u00f3a th\u00e0nh l\u01b0u hu\u1ef3nh dioxit kh\u00f4ng m\u00f9i b\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c.<\/p>\n\n\n\n

Khi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i b\u1ecb h\u1ecfng, qu\u00e1 tr\u00ecnh oxy h\u00f3a kh\u00f4ng ho\u00e0n to\u00e0n s\u1ebd khi\u1ebfn m\u00f9i l\u01b0u hu\u1ef3nh kh\u00f3 ch\u1ecbu tho\u00e1t ra ngo\u00e0i qua lu\u1ed3ng kh\u00ed th\u1ea3i. N\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c ki\u1ec3m tra, v\u1ea5n \u0111\u1ec1 s\u1ebd tr\u1edf n\u00ean nghi\u00eam tr\u1ecdng h\u01a1n v\u00e0 cho th\u1ea5y l\u1edbp ph\u1ee7 x\u00fac t\u00e1c c\u00f3 th\u1ec3 \u0111ang b\u1ecb h\u01b0 h\u1ecfng.<\/p>\n\n\n\n

6. D\u1ea5u hi\u1ec7u 5: Kh\u00f3i th\u1ea3i t\u1ed1i m\u00e0u ho\u1eb7c nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao<\/h2>\n\n\n\n

B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb h\u1ecfng c\u00f3 th\u1ec3 g\u00e2y ra kh\u00f3i th\u1ea3i s\u1eabm m\u00e0u h\u01a1n b\u00ecnh th\u01b0\u1eddng. L\u01b0\u1ee3ng hydrocarbon v\u00e0 carbon monoxide d\u01b0 th\u1eeba trong d\u00f2ng kh\u00ed th\u1ea3i cho th\u1ea5y ph\u1ea3n \u1ee9ng x\u00fac t\u00e1c ch\u01b0a ho\u00e0n t\u1ea5t.<\/p>\n\n\n\n

B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 nh\u1eadn th\u1ea5y nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao d\u01b0\u1edbi g\u1ea7m xe. Nhi\u1ec7t \u0111\u1ed9 kh\u00ed th\u1ea3i cao x\u1ea3y ra khi nhi\u00ean li\u1ec7u ch\u01b0a ch\u00e1y b\u1ed1c ch\u00e1y b\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i. T\u00ecnh tr\u1ea1ng n\u00e0y kh\u00f4ng ch\u1ec9 c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng l\u1edbp n\u1ec1n x\u00fac t\u00e1c (th\u01b0\u1eddng l\u00e0 l\u1edbp g\u1ed1m t\u1ed5 ong) m\u00e0 c\u00f2n c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00e1c b\u1ed9 ph\u1eadn \u1ed1ng x\u1ea3 g\u1ea7n \u0111\u00f3.<\/p>\n\n\n\n

7. D\u1ea5u hi\u1ec7u 6: Ti\u1ebfng k\u00eau l\u1ea1ch c\u1ea1ch b\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i<\/h2>\n\n\n\n

Theo th\u1eddi gian, c\u1ea5u tr\u00fac t\u1ed5 ong b\u1eb1ng g\u1ed1m ho\u1eb7c kim lo\u1ea1i b\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c c\u00f3 th\u1ec3 b\u1ecb v\u1ee1 do nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c t\u00e1c \u0111\u1ed9ng v\u1eadt l\u00fd. Khi c\u00e1c m\u1ea3nh v\u1ee1 b\u1ecb l\u1ecfng, ch\u00fang s\u1ebd k\u00eau l\u1ea1ch c\u1ea1ch b\u00ean trong v\u1ecf b\u1ed9 chuy\u1ec3n \u0111\u1ed5i.<\/p>\n\n\n\n

Ti\u1ebfng k\u00eau l\u1ea1ch c\u1ea1ch n\u00e0y, th\u01b0\u1eddng nghe th\u1ea5y khi kh\u1edfi \u0111\u1ed9ng ho\u1eb7c t\u0103ng t\u1ed1c, l\u00e0 m\u1ed9t d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o r\u00f5 r\u00e0ng. H\u1ec7 th\u1ed1ng x\u00fac t\u00e1c b\u1ecb h\u01b0 h\u1ecfng nghi\u00eam tr\u1ecdng s\u1ebd kh\u00f4ng chuy\u1ec3n \u0111\u1ed5i kh\u00ed th\u1ea3i \u0111\u00fang c\u00e1ch v\u00e0 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 ch\u1eb7n ho\u00e0n to\u00e0n lu\u1ed3ng kh\u00ed th\u1ea3i.<\/p>\n\n\n\n

8. L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c nh\u1eadn v\u1ea5n \u0111\u1ec1 tr\u01b0\u1edbc khi thay th\u1ebf?<\/h2>\n\n\n\n

Vi\u1ec7c thay th\u1ebf b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c r\u1ea5t t\u1ed1n k\u00e9m, v\u00ec v\u1eady vi\u1ec7c ch\u1ea9n \u0111o\u00e1n ch\u00ednh x\u00e1c l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft. Th\u1ee3 m\u00e1y c\u00f3 th\u1ec3 ki\u1ec3m tra \u00e1p su\u1ea5t ng\u01b0\u1ee3c c\u1ee7a \u1ed1ng x\u1ea3, \u0111\u1ecdc d\u1eef li\u1ec7u c\u1ea3m bi\u1ebfn oxy ho\u1eb7c ki\u1ec3m tra b\u00ean trong b\u1ed9 chuy\u1ec3n \u0111\u1ed5i b\u1eb1ng c\u00e1c d\u1ee5ng c\u1ee5 chuy\u00ean d\u1ee5ng.<\/p>\n\n\n\n

Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 l\u00e0 do c\u1ea3m bi\u1ebfn oxy b\u1ecb l\u1ed7i ho\u1eb7c do h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t nhi\u00ean li\u1ec7u c\u1ee7a \u0111\u1ed9ng c\u01a1 ch\u1ee9 kh\u00f4ng ph\u1ea3i do b\u1ed9 chuy\u1ec3n \u0111\u1ed5i. Lu\u00f4n x\u00e1c nh\u1eadn tr\u01b0\u1edbc khi quy\u1ebft \u0111\u1ecbnh thay th\u1ebf.<\/p>\n\n\n\n

\"7<\/a>
7 tri\u1ec7u ch\u1ee9ng th\u01b0\u1eddng g\u1eb7p c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb h\u1ecfng<\/a><\/figcaption><\/figure>\n\n\n\n

9. Ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c<\/h2>\n\n\n\n

M\u1eb7c d\u00f9 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c s\u1ebd xu\u1ed1ng c\u1ea5p theo th\u1eddi gian, nh\u01b0ng vi\u1ec7c b\u1ea3o d\u01b0\u1ee1ng ph\u00f2ng ng\u1eeba c\u00f3 th\u1ec3 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a ch\u00fang:<\/p>\n\n\n\n

    \n
  • Ch\u1ec9 s\u1eed d\u1ee5ng x\u0103ng ch\u1ea5t l\u01b0\u1ee3ng cao \u0111\u1ec3 gi\u1ea3m l\u01b0\u1ee3ng c\u1eb7n carbon.<\/li>\n\n\n\n
  • S\u1eeda ch\u1eefa k\u1ecbp th\u1eddi hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ed9ng c\u01a1 ng\u1eebng \u0111\u00e1nh l\u1eeda \u0111\u1ec3 tr\u00e1nh \u0111\u01b0a nhi\u00ean li\u1ec7u ch\u01b0a ch\u00e1y v\u00e0o b\u1ed9 chuy\u1ec3n \u0111\u1ed5i.<\/li>\n\n\n\n
  • \u0110\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t kh\u00ed th\u1ea3i, bao g\u1ed3m c\u1ea3m bi\u1ebfn oxy, ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c.<\/li>\n\n\n\n
  • Tr\u00e1nh v\u1eadn h\u00e0nh \u0111\u1ed9ng c\u01a1 v\u1edbi h\u1ed7n h\u1ee3p nhi\u00ean li\u1ec7u gi\u00e0u l\u00e0m t\u0103ng HC v\u00e0 CO trong kh\u00ed th\u1ea3i.<\/li>\n<\/ul>\n\n\n\n

    10. Khi thay th\u1ebf l\u00e0 l\u1ef1a ch\u1ecdn duy nh\u1ea5t<\/h2>\n\n\n\n

    N\u1ebfu ch\u1ea9n \u0111o\u00e1n x\u00e1c nh\u1eadn b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb tr\u1ee5c tr\u1eb7c, c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i thay th\u1ebf. C\u00e1c b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u hi\u1ec7n \u0111\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n kh\u00ed th\u1ea3i nghi\u00eam ng\u1eb7t v\u00e0 kh\u00f4i ph\u1ee5c ch\u1ee9c n\u0103ng x\u1eed l\u00fd kh\u00ed th\u1ea3i ph\u00f9 h\u1ee3p. H\u00e3y ch\u1ecdn lo\u1ea1i l\u1eafp tr\u1ef1c ti\u1ebfp l\u00e0m b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9 ch\u1eafc ch\u1eafn v\u00e0 ki\u1ec3m tra xem n\u00f3 c\u00f3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n nh\u01b0 Euro IV, Euro V ho\u1eb7c \u0110\u1ea1o lu\u1eadt Kh\u00f4ng kh\u00ed S\u1ea1ch c\u1ee7a Hoa K\u1ef3 hay kh\u00f4ng.<\/p>\n\n\n\n

    T\u00f3m t\u1eaft: Nh\u1eefng \u0111i\u1ec3m ch\u00ednh<\/h2>\n\n\n\n
      \n
    • B\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i t\u1eeb hydrocarbon, carbon monoxide v\u00e0 NOx.<\/li>\n\n\n\n
    • S\u00e1u d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o bao g\u1ed3m: \u0111\u00e8n ki\u1ec3m tra \u0111\u1ed9ng c\u01a1, hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1 k\u00e9m, ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u, m\u00f9i tr\u1ee9ng th\u1ed1i, kh\u00f3i \u0111en\/nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao v\u00e0 ti\u1ebfng k\u00eau l\u1ea1ch c\u1ea1ch.<\/li>\n\n\n\n
    • Ch\u1ea9n \u0111o\u00e1n \u0111\u00fang l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft tr\u01b0\u1edbc khi thay th\u1ebf\u2014\u0111\u00f4i khi v\u1ea5n \u0111\u1ec1 b\u1eaft ngu\u1ed3n t\u1eeb c\u1ea3m bi\u1ebfn ho\u1eb7c h\u1ec7 th\u1ed1ng nhi\u00ean li\u1ec7u.<\/li>\n\n\n\n
    • B\u1ea3o tr\u00ec ph\u00f2ng ng\u1eeba v\u00e0 ch\u0103m s\u00f3c \u0111\u1ed9ng c\u01a1 k\u1ecbp th\u1eddi s\u1ebd k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a b\u1ed9 chuy\u1ec3n \u0111\u1ed5i.<\/li>\n\n\n\n
    • Khi c\u1ea7n thay th\u1ebf, h\u00e3y lu\u00f4n ch\u1ecdn b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c ba chi\u1ec1u ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn.<\/li>\n<\/ul>\n\n\n\n

      B\u1eb1ng c\u00e1ch quan s\u00e1t nh\u1eefng d\u1ea5u hi\u1ec7u n\u00e0y v\u00e0 h\u00e0nh \u0111\u1ed9ng s\u1edbm, ng\u01b0\u1eddi l\u00e1i xe c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1, gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i v\u00e0 tr\u00e1nh nh\u1eefng s\u1ef1 c\u1ed1 h\u1ecfng h\u00f3c t\u1ed1n k\u00e9m.<\/p>","protected":false},"excerpt":{"rendered":"

      Kh\u00e1m ph\u00e1 s\u00e1u d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o b\u1ed9 chuy\u1ec3n \u0111\u1ed5i x\u00fac t\u00e1c b\u1ecb h\u1ecfng. T\u00ecm hi\u1ec3u c\u00e1ch c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 kh\u00ed th\u1ea3i, kh\u00ed th\u1ea3i v\u00e0 \u0111\u1ed9ng c\u01a1 b\u00e1o hi\u1ec7u \u0111\u00e3 \u0111\u1ebfn l\u00fac c\u1ea7n ki\u1ec3m tra ho\u1eb7c thay th\u1ebf.<\/p>","protected":false},"author":1,"featured_media":5504,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowgdPcCw:productID":"","footnotes":""},"categories":[98],"tags":[1240,511,403,106,1243,1239,1241,469,32,1238,1244,1242,27],"class_list":["post-5503","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","tag-3-way-catalytic-converters","tag-automotive-catalytic-converters","tag-carbon-monoxide","tag-catalytic-converter","tag-catalytic-reaction","tag-catalyticconverter-replacement","tag-engine-emission","tag-exhaust-gas","tag-exhaust-system","tag-failing-catalytic-converter","tag-hydrocarbons","tag-nitrogenoxides","tag-three-way-catalyst"],"_links":{"self":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts\/5503","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=5503"}],"version-history":[{"count":0,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/posts\/5503\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/media\/5504"}],"wp:attachment":[{"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/media?parent=5503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/categories?post=5503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3waycatalyst.com\/vi\/wp-json\/wp\/v2\/tags?post=5503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}