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Smoke and smell

BinksyBinks
in Audi A3 (8P) Forum

Featured Replies

Hi all. Audi a3 2008 2.0 tdi. Black smoke on acceleration and diesel smell, slight whistling sound . Plugged an obd2 scanner in. No fault codes but maf reading a lot higher than it should be. Could this be the culprit for the smoke and smell? Any thoughts? Thanks

5 hours ago, BinksyBinks said:

Hi all. Audi a3 2008 2.0 tdi. Black smoke on acceleration and diesel smell, slight whistling sound . Plugged an obd2 scanner in. No fault codes but maf reading a lot higher than it should be. Could this be the culprit for the smoke and smell? Any thoughts? Thanks

Hi black smoke is due to over fuelling, the high MAF reading is due to the ECU trying to combat the extra fuel with more air, so you either have a leaking injector or the car has been remapped at some point.

Steve.

  • 4 weeks later...

When was it last serviced?

 

Plugged airfilter will also cause black smoke and a loud sucking/ whistling 

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