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Thread: 1.9 CDTI EGR Fault code reset.

  
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    vshekhar's Avatar
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    Unhappy 1.9 CDTI EGR Fault code reset.

    Hello experts!
    I have a 2007 CDTi Manual. I recently cleaned the EGR Valve and installed a blocking plate with 10 mm hole, but after putting it back got the "car-Spanner" light. I removed the Blocking plate now and the Spanner light is gone.
    However a pedal test gives be p0400SA code. which is related to EGR valve.
    I have disconnected battery overnight several times but the fault code does not reset.

    -- Does the fault code reset after extended Battery disconnect?
    -- If the fault code is coming back; is it due to some malfunction in EGR?

    Thanks in Advance for helping me out.
    -VJ

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    jiberson's Avatar
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    Fault codes may or may not reset by disconnecting the battery, the only true way of knowing is hooking up to a tech2 or similar and wiping them.

    The fault code was probably because of the blanking plate as it was not detecting any flow through. The best way would be to make to small 5mm holes in the blanking plate so some exhaust fumes can get through.

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    Thanks for the reply.
    I did have a blocking plate with a 10 MM hole in it. But still i got the spanner light.
    Anyways My main concern is to find out, if the fault code showing up is due to the old code not being cleared or new code being logged.
    I will will probably buy one of those OP-COM readers from ebay.
    -VJ.

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    Did you also clean the ports in the inlet manifold? they may have contributed to the restriction of flow if not cleaned when you did the EGR. 10mm hole should be fine

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    Mark T's Avatar
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    Fault codes are stored until you get 10 clear runs without the code coming up again.
    Or you OPCom/Tech2 them away.

    If the spanner light isn't coming up, then it will clear the code after 10 runs.
    How Tos . Parts For Sale
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    Thanks Guys. Thats educational.
    -VJ

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