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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

    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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