forum.audiv8.com Foren English Audi V8 Forum Engine Code

HI this is a follow up on the previous post. I made the Led readout and i have engine code 2231. Which means Idle Speed Valve. I need to know what this is and were i can access it. Thanks

Jimmy

Your Idle Stabilizer Valve is located on the front of the engine. It is black, has a sticker on it that says Bosch, and looks like a small starter motor. It is bolted to the throttle body and maintains an even throttle by controlling the amount of vacuum.

If it gets dirty it can get "sticky". You can remove it and give it a good cleaning with throttle body cleaner (carborator cleaner). Avoid using brake cleaner (too harsh).

You might have a vacuum leak that the ISV can't compensate for. You may also have a broken wire, or disconnected plug going to the ISV.

Replacement with a known good used part or new from dealership is the last resort.

Hope that helps, and let me know if you have any further questions.

Regards,

- Jeremy

Thanks ALot

i have a question, how do you get the codes? also my transmission wont go in drive but works fine in reverse, any ideas? it make a wierd sound like a vacume leak, is there any vacume hoses or electronics that would make this sound?
any help would be great.
thanks guys,
craig

Just some words for the wise, my codes were telling me the idle air control motor. The symtoms of my car were running like crap, no power, unstable idle. It turned out the my driver side ignition rotor blew up internaly, so u couldnt see if it was blown. Once i replaced it car ran great