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EGT has me worried :(

Discussion in 'A3/S3 Forum (8L Chassis)' started by goodbuzzman1, Jun 23, 2014.

  1. goodbuzzman1
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    goodbuzzman1 Member

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    [Jun 23, 2014]
    Ever since i bought my car it had an EGT fault code. So when i decided to overhaul my car a replacement was first on the list along with a brand new turbo. I bought a second hand one off ebay from a buyer who assured me it came off a car with no fault codes but alas...im getting the same fault code up again. I have trawled through the forum and it appears that this EGT is quite important. I have checked for continuity back to the ecu and im getting 12v at the blue/yellow wire so its not the wiring.

    From what i read, not having a fully working EGT is bad news right? could it be the reason why my original k04 had a cracked housing?

    and where is the best place to buy a replacement?
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  3. Prawn
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    Prawn My other car is a MINI!!!!

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    [Jun 24, 2014]
    Cars with EGT faults drive horrid mate. I've seen this a few times and people have ignored it, and when fixed it's really been a different car.

    The issue isn't so much that the car needs the sensor to run, as it doesn't really, but it's the default mode the car can enter when it detects a faulty sensor that causes the issue.

    usually running far far too rich and killing all power.

    You're always taking chances with second hand sensors sadly.

    If you've checked the wiring and it seems OK, do you think it could be a temperature dependant fault on the plug under the inlet?
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  4. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Jun 24, 2014]
    What is the actual fault code? the fact you have fitted another EGT probe and have the same fault suggests something else... not all fault codes mean the component they mention is faulty as it could throw as the result of something else thats being a problem..

    <tuffty/>
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  5. goodbuzzman1
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    goodbuzzman1 Member

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    [Jun 24, 2014]
    heres the code

    17863 - Exhaust Gas Temp Sensor 1 (G235)
    P1455 - 35-10 - Implausible Signal - Intermittent
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  6. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Jun 24, 2014]
    implausible signal suggests the EGT probe tbh... you can see whats going on by logging block 112...

    <tuffty/>
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  7. goodbuzzman1
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    goodbuzzman1 Member

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    [Jun 24, 2014]
    Cool. I'll do it this evening.
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  8. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Jun 24, 2014]
    if in fault 1100'c is the result = fuel dump
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  9. goodbuzzman1
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    goodbuzzman1 Member

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    [Jun 24, 2014]
    ok did a log tonight and the maximum temp was 845
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  10. badger5
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    badger5 www.badger5.co.uk Site Sponsor

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    [Jun 25, 2014]
    no fault codes for egt related things?
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