2000 A4 1.8T trouble code

Also.....72K miles.

Ken

This is what the Bentley manual has for my '03:

P1128 17536 Bank1, mixture adaption (mult.) system too lean - Check exhaust system for proper seal - Check pressure regulation valve of crankshaft housing ventilation - Test Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) - Test Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) - Check fuel injectors

This is what the Bentley manual has for my '03:

P1128 17536 Bank1, mixture adaption (mult.) system too lean - Check exhaust system for proper seal - Check pressure regulation valve of crankshaft housing ventilation - Test Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) - Test Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) - Check fuel injectors

Regards,

Ken

I'd bight the bullet and get a manual if you are mechanically inclined. The O2 sensors can be checked with a multimeter. The Bentley manuals (~$100; ~$70 on ebay) are what Audi use and have all the electronics and VAG-COM checks, but it's kind of confusing. You can get a Haynes manual for about $15 for your car (none for mine yet) which will probably have a much clearer explanation for us DIYs of how to test the sensors.

--Art

This is what the Bentley manual has for my '03:

P1128 17536 Bank1, mixture adaption (mult.) system too lean - Check exhaust system for proper seal - Check pressure regulation valve of crankshaft housing ventilation - Test Oxygen Sensor (O2S) before Three Way Catalytic Converter (TWC) - Test Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) - Check fuel injectors

--Art

I get the impression that oxygen sensors are oxygen sensors. That means that other manuals I have which provide such information likely are similar for Audi. I'll give that a shot this weekend and see how it plays out.

Thanks again, Art!

Ken