andy oliver Posted May 12, 2005 Share Posted May 12, 2005 Engine suddenly refused to start due to no spark. It has the standard Ford distributerless ignition system and an ECU. The coils work OK and the wiring and power supply seem OK which only leaves the ECU and crank speed sensor. I would have thought it unlikely that the ECU has failed so I am beginning to suspect the crank speed sensor. Is there an easy way to check it and is there another possible problem I may have missed ?. All suggestions gratefully received. Link to comment Share on other sites More sharing options...
Peter T Posted May 13, 2005 Share Posted May 13, 2005 Sounds like a CPS failure, no signal means no spark, is the fuel pump powering up at all ? Measuring resistance is the way to verify if it is suspect. Is your emergency switch been triggered ? Carbon Components from K9 Composites Link to comment Share on other sites More sharing options...
andy oliver Posted May 13, 2005 Author Share Posted May 13, 2005 Peter, I thought the CPS as well but replacing it with a new one hasn't helped. The manufacturer reckons ECUs either work perfectly or not at all. There doesn't seem to be any fuel being injected either so it's starting to look like the ECU at fault although I believe this is rare. The manufacturer will test it for a mere £110 but I can't see any alternative. C'est la guerre! Link to comment Share on other sites More sharing options...
Peter T Posted May 13, 2005 Share Posted May 13, 2005 What ECU is it then ? Carbon Components from K9 Composites Link to comment Share on other sites More sharing options...
Cloud 9 Posted May 15, 2005 Share Posted May 15, 2005 Does it do this only when hot? Link to comment Share on other sites More sharing options...
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