LEXUS:LX470:UZJ100:2UZ-FE:WDM:P0302:P0304:エンジン不調:DTC:scan data:

LEXUS:LX470:UZJ100:2UZ-FE:WDM:P0302:P0304:エンジン不調 - 車QF - Yahoo!ブログ

2009/10/27(火) 午前 1:42

LEXUS:LX470:UZJ100:2UZ-FE:WDM:P0302:P0304:エンジン不調
気筒配置図
図の整合性に付いて、表現が適切でないかも知れません。適切な表現などご指摘ください。
各位再度検証して参照ください。　そもそもの目的は気筒の識別でした。
90度位相V-type-8Cyl.、クランク･ピン・ストローク半径　41.25(3UZ)

P0302

P0304

失火判定系

一度DTC消去して、再度テスト走行を依頼中
無負荷レーシングで吹き上がり回復傾向、実際の負荷状態で2トリップ以上のテストをお願いしている。

すでに、AFMを交換しているとの事だが、その根拠とか詳細は不明。

このテストでのスキャナの対応状況も T/Bの予定。

IG COIL(DI) 1本のみ交換で、回復したと連絡あり。

Cylinder #2 Misfire Detected
What does that mean?

A P0302 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #2.
Symptoms
Symptoms may include:
the engine may be harder to start
the engine may stumble / stumble, and/or hesitate
other symptoms may also be present
Causes

A code P0302 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer
Possible Solutions

If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.