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  1. #1
    A4 2.4 30V PES Supercharged

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    2.4 V6 30v secondary air solenoid

    Hi, I have a 2.4 v6 30v A4 B5 i always thought this car was vrtually identical to the 2.8 apart from the fact that the 2.8's were 4WD and the 2.4s FWD after very recently fitting a supercharger i am having difficulty in completing the secondary air solenoid vaccum set up to the supercharger because my car does not have a secondary air solenoid, can anyone help are there any other 2.4 A4's on the forum ? my cars a 1998 A4 if there are would you mind having a look at the vac line set up on top of the thottle body on your car to see if any other 2.4's have a secondary air solenoid, or have any of you replaced the brittle vac lines? because not even my local Audi dealer can advise on this but this doesnt surprise me ! thanks
    A4 2.4 30V

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  3. #2
    Broken Byzan's Avatar
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    I might be able to look up the vac lines on elsa, what details you need specificaly?

    To do with this solenoid thingy?

  4. #3
    "Stick a V8 in it!"

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    I THINK the earlier 30v engines had a seperate idle control valve, the later engines have it combined with the throttle body.

    Is that what you mean by secondary air valve?

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  5. #4
    A4 2.4 30V PES Supercharged

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    Hi All,

    if you trace the vaccumm pipes they connect to 2 solenoids above the throttle body, one is blue this is the inlet temp solenoid, one is green this is the secondary air solenoid, my car only has the blue one, i have seen other 2.4's with them both and this confuses me i cant find out why mine has just the blue one, i may also have a problem with my MAF so i'm going to replace that and see if that cures it. But if you have access to any diagrams Mark that would be a big help i need to post my engine code as well for you.
    A4 2.4 30V

  6. #5
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    Dens', chuck the engine code up, and we can take a peak

  7. #6
    A4 2.4 30V PES Supercharged

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    Sussed it, it was a dirty MAF gave it a good old blast with carb cleaner that has fixed it good and proper my car rev's like a bike and the supercharger whine on the top end is addictive !! I'm in love again !
    A4 2.4 30V

  8. #7
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    Good stuff mate, glad its sorted.

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