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  1. #1
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    Question New faults - Please help

    Hello,

    I have two faults currently, which I need help with.

    1: The Yellow Oil Sensor light, which appears intermittently. Oil level has been checked, and ok. The sensor off the sump has been taken off to see if it could be faulty sensor. The light came on again, so eliminating this issue.

    2: In this past week, my rev counter has gone upto a '4' when in neutral, but, also when driving the car is like being driven itself, due to some fault.

    Hesistating taking it to Audi garage, as diagnostics are a con!

    Thanks for your help.

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  3. #2
    Sandip's Avatar
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    Hi bud, what car is it?

    Fault 1 could be the sensor or an oil pressure issue due to a blocked pick up or tired oil pump
    3.2 V6 with Custom Code VVT Attack Software


  4. #3
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    A3, 1.6 Sport, 99 V reg, Petrol, Manual.

  5. #4
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    Try an engine flush and oil change, if its a blocked oil pick might just unblock it, and you could also get the oil pressure checked.

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  6. #5
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    Oil change n engine flush was done at service last month....

  7. #6
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    look at the connector three pins tend to bend just straighten them up and you should be done, rev sounds like throtle issue, carbon deposite might need to be cleaned off followed by reset
    S3-8L REVO stage 2, Milltek, 3" DP & custom 3" decat, RS2 spark plugs, 4 bar FPR, Green-Cotton uprated upper/lower boost hose & TIP, Front Zimmerman & Ferrodo. LCR spliter. boost gauge, smoothed AB. Aero blades, H&R 5mm spacers. Best time 14.03sec, 0-62 in 5.7sec. 207gs @ 25psi , polished inlet mani. VAGCOM 805.1

  8. #7
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    Connector three pins?

  9. #8
    S3KO4's Avatar
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    On the sump you have the oil sensor, the connector has three pins inside it, which tend to bend during instalation and removals. straighten them up or replace it if that it not possible.
    S3-8L REVO stage 2, Milltek, 3" DP & custom 3" decat, RS2 spark plugs, 4 bar FPR, Green-Cotton uprated upper/lower boost hose & TIP, Front Zimmerman & Ferrodo. LCR spliter. boost gauge, smoothed AB. Aero blades, H&R 5mm spacers. Best time 14.03sec, 0-62 in 5.7sec. 207gs @ 25psi , polished inlet mani. VAGCOM 805.1

  10. #9
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    The sensor light came on before the actual sensor was taken off to check if it was a faulty sensor, which it wasn't. As, when the sensor was taken off, the sensor light still came on.

  11. #10
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    Faults from todays scan

    00537 Oxygen Sensor Regulation
    19-10 Lower Limit-Intermittent
    00522 Engine Coolant Temperature Sensor(G62)
    27-10 Implausible Signal-Intermittent
    00668 Supply Voltage Terminal 30
    36-00 Open Circuit

    00522 - Ross-Tech Wiki

    00537 - Ross-Tech Wiki

    00668 - Ross-Tech Wiki

    I think these faults are the possible cause for your intermittent dodgy idle issue and temp gauge fluctuations. The oil light seems to me as though it could be a blocked pick up.
    3.2 V6 with Custom Code VVT Attack Software


  12. #11
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    Quote Originally Posted by New2Audi View Post
    The sensor light came on before the actual sensor was taken off to check if it was a faulty sensor, which it wasn't. As, when the sensor was taken off, the sensor light still came on.
    ...how did you check that the sensor wasn't at fault? The oil light came on when you disconnected the oil sensor? wouldn't that be expected? No oil sensor is just as bad as a broken one...
    Alex S3 AMK
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  13. #12
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    Yes the oil sensor on the sump was disconnected to eliminate that specific fauly. so when the ignition was turned on again, the light still came on. I would've expected the oil sensor light not to appear if it was the sensor faulty on the sump.

    Furthermore, I have had the car connected to VAS PC, the following codes appeared:

    0522
    0537
    0668
    01177
    00562
    01039

    Temp sensor was replaced btw.

    Thanks.

  14. #13
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    the throttle had been adjusted with software from an approved garage.. Oil sensor light is now off after replacing the oil sensor itself.

  15. #14
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    Bum! Fault code 00537 still there. Question: Which Lambda does this point to? Before or After Catalytic Convertor?

    Thanks.

  16. #15
    "Stick a V8 in it!"

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    If you unplug the oil sensor you will get a yellow warning with "SENSOR" at the bottom.

    Sensor needs to be connected.

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  17. #16
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    Its not the oil sensor fault.

  18. #17
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    Quote Originally Posted by New2Audi View Post
    Hello,

    I have two faults currently, which I need help with.

    1: The Yellow Oil Sensor light, which appears intermittently. Oil level has been checked, and ok. The sensor off the sump has been taken off to see if it could be faulty sensor. The light came on again, so eliminating this issue.

    2: In this past week, my rev counter has gone upto a '4' when in neutral, but, also when driving the car is like being driven itself, due to some fault.

    Hesistating taking it to Audi garage, as diagnostics are a con!

    Thanks for your help.

    How is diagnostics a con? The technician needs time to work and diagnose a fault. He isn't a wizard and can't just snap his fingers to fix it!
    I agree sometimes dealer prices can be outrageously expensive, but at the end of the day any garage would have to be allowed time to diagnose your fault.
    REVO Stage 2, Eibach anti roll bar kit, forge 007p diverter valve (yellow spring), Badger5 turbo intake pipe with Jetex filter and Neuspeed heat shield, Forge upper bost hoses, N75, DV and Cam breather hoses, XS Power 3" downpipe 200cell cat and 3" cat back system, Apex 30mm springs, N249 bypass, Oil catch can and PVC delete, Front Mount Intercooler............

  19. #18
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    Don't take it to a dealer... its not a con as such but tbh they just follow a bunch of checks and replace everything suspect hence the cost... take it to a specialist that deals with these cars (of this age) all the time..

    Had a guy come in that had been to 2 SEAT dealers to diagnose a noise with his LCR and was told different things by both including needing a new turbo...

    We stuck a smoke test on it and diagnosed it as a split TIP (OEM rubber one) within 10seconds of firing the kit up...

    I had an Audi tech show me his S3 that had was having 'an issue' with and spotted the signs of a split 'V' pipe on the inlet mani from oil spray on the charge pipe... he said all engines are oily aren't they?

    <tuffty/>
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  20. #19
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    Well, dealer in this case, was referred to Audi dealer and the prices they charge for diagnostics! I'm sure you agree, as in my initial post, they are a con!!!

    What with plugging the machine to the ECU and getting readings off, print and pay £70+

  21. #20
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    Any idea guys on the lambda probe though; which one would the fault code 00537 refer to, before or after catalytic? tnx

 

 

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