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esp light then engine management ??? :S

Discussion in 'A3/S3 Forum (8L Chassis)' started by finny, May 6, 2013.

  1. finny
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    finny Member

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    had the car out today for about 70 mile run...had the esp off and everything was ok then the car decided to cut out so restarted it and this happened on and off for few minutes! then esp light stayed on even when i tried to turn it off. so drove home everything was ok until i restarted the car again and now have the engine management light on...anyone guess what is wrong please? its an 03 bam s3 by the way with minor mods
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  2. Sandra
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    Sandra MODERATOR Staff Member Moderator

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    Have you done a vcds scan for any possible fault codes?
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  3. finny
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    finny Member

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    not yet im doing that tomorrow as i dont have a scanner to hand im just very inpatient lol
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  4. Sandra
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    Sandra MODERATOR Staff Member Moderator

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    Fair enough. If you dont have your own vcds cable, check out the vcds map for users near you. Hope you get it sorted out soon. :) x
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  5. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    phil miller and Sandra like this.
  6. finny
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    finny Member

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    sound il see what it brings up and get back to you mate
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  7. phil miller
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    phil miller Member

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    As Paul has said MAF all day long dude :)
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  8. finny
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    finny Member

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    ok ok where did you two buy these crystal balls lol? no on a serious note:

    17939 camshaft adjustment open circuit?

    16717 knock sensor signal too high

    16712 same again knock sensor

    16486 mass air flow signal too low

    please dont tell me my car is dying?

    also showed up brake ligh switch which could be fault with esp?
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  9. finny
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    finny Member

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    oh and 01314 engine control module something?
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  10. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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  11. finny
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    finny Member

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    excuse my ignorance but im no good at all when it comes to all this...ive cleared them yeah but the light has just came back on due to MAF which il replace next week but as for the others i dont have a clue?
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  12. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    I am THAT good :)

    17939/P1531/005425 - Ross-Tech Wiki
    VVT is either unplugged or there is a break in the wiring... check that the VVT tensioner is plugged in...

    16717/P0333/000819 - Ross-Tech Wiki

    I have had this with sensor 1 before and I fixed mine be rewiring to the ECU...

    16712/P0328/000808 - Ross-Tech Wiki
    Not the same knock sensor... this is sensor 1, the previous code is sensor 2...

    16486/P0102/000258 - Ross-Tech Wiki

    MAF sensor... normally associated with a duff sensor... worth getting a new (Bosch/genuine) one if you don't know the history of the one on there currently...

    implausible signal? code would help... normally a dodgy switch...

    Considering the sensor codes, it could be also related to a bad earth or other dodgy wiring... there is a collection of earths under the battery tray that get corroded... worth checking there... also check the loom where there injectors etc all cumulate... this could reveal damage to the loom (can happen if for example some ham fisted lout fitted a clutch and trapped the wires or something)

    <tuffty/>
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