Year of Manufacture *: 2001
Engine Size and Code *: 2.0 AQY
( Optional ) Scanner Used: KTS
( Optional) Fault Codes: AC40 Bank 1 mixture too rich
control and lambda heater not active. Have checked voltages at lambda and all appear to be correct. Lambda is switching at correct rate. Once engine is warm, mixture adaption is reading 16 - 18%. I have checked ignition system, exhaust emissions are fine, car starts and drives with no problems.I have checked condition of catalytic converter and have checked related items as per ESI, have actually replaced lambda probe and injectors. We are thinking a possible ECU fault, running out of ideas, any help would be much appreciated!
Dave
Message Thread VW Golf 2.0 AQY 2001 - MIL on intermittently # - Dave Wolveridge August 13, 2010, 5:54 pm
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