midnightzxt Posted January 16, 2008 Share Posted January 16, 2008 All I want to do is drive the car!!!! My problems are now down to 1 and I believe that I have figured out what is wrong, but not the solution. I have deducted that my car dies at the exact point when warmup enrichments stop. As SOON as the Megasquirt goes out of warmup mode, the tach (ignition signal) spikes all over the place and the car slowly dies and I can't start it up again until the engine coolant system is cold enough for the Megaquirt to be in warmup mode again. What is going on?? any ideas? Thanks, Tim Quote Link to comment Share on other sites More sharing options...
mobythevan Posted January 17, 2008 Share Posted January 17, 2008 Which mode do you mean? FIDLE kicks off or warmup enrichment kicks off? I could understand a problem with FIDLE and maybe the FIDLE circuit or wiring having problems. I can't make any sense out of warmup enrichment changing anything with the tach signal or power supply to the MS. Did this engine setup run correctly before the megasquirt install? Wierd problem. I would definitely put the megasquirt on a stim board and see if it shows the same problem as you move the coolant temp up and down. Quote Link to comment Share on other sites More sharing options...
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