Car won't start when hot

thumperf350 · Post by **thumperf350** » Thu Sep 17, 2009 7:32 pm

It cranks, I smell fuel (maybe too much), my timing light flashes when cranking, it cold starts better faster and harder than any of my other cars. It dumps right into a perfect idle as well. I don't necessarily know if the pwm valve is working but the way it is running it's not a main concern. Any ideas, advice anything??

MSII V3.0, EEC Mustang Adapter Board, 2.89

Matt Cramer · Post by **Matt Cramer** » Fri Sep 18, 2009 5:01 am

Sounds like you need to adjust the Cranking Pulse Width settings when the engine is hot. If you smell fuel, it's probably too much.

thumperf350 · Post by **thumperf350** » Fri Sep 18, 2009 9:44 am

any adjustments to the prime puslewidth?

Matt Cramer · Post by **Matt Cramer** » Fri Sep 18, 2009 10:09 am

You might want to try that too, but first you really should fix having more cranking pulse width when hot than when cold.

thumperf350 · Post by **thumperf350** » Fri Sep 18, 2009 11:20 am

ouch! that's embarrassing! so just to double check if my car is firing no problem cold at 2ms then i should start the hot at somewhere around .5 or so and see how that does? thanks for catching that matt. funny how one can stare at the screen and not notice the obvious.

Matt Cramer · Post by **Matt Cramer** » Mon Sep 21, 2009 7:03 am

That sounds like a good starting point to me.

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