How to check coils?

MarT2

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#1

How to check coils?

22 March 2012, 19:39

Hi!

My ADU is missfiring at WOT about 5000rpm. It goes about 1.4 bar and when arrive at 5000rpm missfires a little and the turbo pressure goes back to mechanical boost.

I'm sure that I have a faulty coil.

How can I know which is the faulty coil? (I haven't a new coil to test it).

Thanks in advance!
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UrS4boy

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#2

22 March 2012, 19:51

Originally posted by MarT2

My ADU is missfiring at WOT about 5000rpm. How can I know which is the faulty coil?

Following the hints in this post (link below). The coil that has the weakest spark (jumps only the smallest gap) is you culprit:

quattroworld.com Forums: One missing and hestitation diagnostic procedure

http://forums.quattroworld.com/s4s6/msgs/22611.phtml

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