http://www.obd-codes.com/p0420

來源: 北美胡同串子 於 2014-09-23 07:37:05 [] [舊帖] [給我悄悄話] 本文已被閱讀： 次 (669 bytes)
A code P0420 may mean that one or more of the following has happened: Leaded fuel was used where unleaded was called for A damaged or failed oxygen sensor (HO2S) Downstream oxygen sensor (HO2S) wiring damaged or connected improperly The engine coolant temperature sensor is not working properly Damaged or leaking exhaust manifold / catalytic converter / muffler / exhaust pipe Retarded spark timing The oxygen sensors in front and behind the converter are reporting too similar of readings Leaking fuel injector or high fuel pressure Cylinder misfire Oil contamination

Read more at: http://www.obd-codes.com/p0420
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• 建議你先把車屁股架起來，看看排氣管附近的皮管子是否有裂的。 -北美胡同串子- ♂ 給 北美胡同串子 發送悄悄話 (54 bytes) () 09/23/2014 postreply 07:46:21

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