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  1. BigTom2506

    BigTom2506 New Member

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    Hi guys have a engine light come on with the code p0101 maf sensor changed it with a new one but engine still juddery,excessive fuel consumption and a hell of a lot of smoke from the exhaust any ideas or easy fixes please
     
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  3. BigTom2506

    BigTom2506 New Member

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    I also have a p0401 code aswell
     
  4. Just Rob.

    Just Rob. Moderator Staff Member Moderator Team Daytona Team Brilliant Black TFSI Owners Group Team V8 VCDS Map User Audi RS4 Audi A4 Audi Avant Owner Group quattro S-line owners group Manual

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    Possible causes EGR passage clogged, Faulty EGR Vacuum Modulator Valve, Faulty EGR Valve, Faulty EGR solenoid valve ,EGR solenoid valve harness is open or shorted, EGR solenoid valve circuit poor electrical connection Dead (Weak) battery ,Faulty EGR temperature sensor and circuit ,Exhaust gas leaks

    Read more: https://www.autocodes.com/p0401_audi.html
     
  5. BigTom2506

    BigTom2506 New Member

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    Thanks Rob I've changed the EGR valve and had a new maf sensor fitted going to check the connections tomorrow
     

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