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Cold weather ECU Fail ??

Broken Byzan Oct 8, 2009

  1. Broken Byzan

    Broken Byzan Photographic Moderator Staff Member Moderator VCDS Map User quattro Audi A4

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    So she has done it again, she used to fail to power up the ECU last year when it was cold sometimes, so i replaced the ECU relay and all seemd well.

    Well today the temp dropped to a shade over 5 Degress and the ECU wouln'dt power up. Ie no MIL light and EPC light stuck on.

    After a while of sitting and turning the ignition on and off/waiting, the light popped on and she went straight away.

    Any ideas?

    2001 A3 TQS ARY Engine. The problem is it wont happen again for a while so tracing it is impossible, grrr.
     

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