Engine Performance problem
1992 Lexus LS 400 V8 209000 miles
Check engine light is indicating code 55 - #2 knock sensor, but I don't sense any pinging. How urgent is it to replace it? One of 2 knock sensors. Light comes on only sometimes, usually when I've left the car undriven for several consecutive hours or longer. Is there also a relation to how the engine is started? Start up can be whiny even though the starter motor is relatively new--whiny starts seem to cause the light to come on.
have the same problem?
Friday, June 5th, 2009 AT 10:47 PM