2000 b5 a4 1.8t shuts off at low rpms or while driving and sometimes won't start back up.

Asked by David Apr 26, 2013 at 08:02 PM about the 2000 Audi A4 1.8T Sedan FWD

Question type: Maintenance & Repair

Upgraded turbo and fmic. Does it need to
be tuned for it to run right and also it idles
real rough and just shuts off. Help please.

7 Answers
177,545

tenspeed answered 11 years ago

Get the codes read to see where the problem lies. Upgrading the turbo without a tune will not shut the engine down. It won't run to it's full potential but it will run. If you know someone with a VAGCOM cable, you can get a real good look at the system functions.

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177,545

tenspeed answered 11 years ago

Check in at AudiWorld.com and Audizine.com to see if someone with a diagnostic cable is near you.

Mark helpful

David answered 11 years ago

I got the codes pulled cuz I am a mechanic at pep boys but I am not formiliar with Audi. Most the codes had to do with the bank 2 O2 sensor missing cuz I have a straight pipe on it.

Mark helpful
6,000

mrmoony answered 11 years ago

With a bigger turbo the air/fuel mix could be off. Need more gas with the more air.

Mark helpful

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