[rfcsoulja]

Alright. My 01 v6 mustang will crank and crank but won't start. . .Unless it really wants to. Here are the circumstances. I'm in the parking lot installing my wideband. I think I have everything wired up correctly and I go to start my car. It cranks and cranks but won't start. So I'm thinking "surely me messing with fuse 37 under the dash wouldn't cause this issue right"? Ok, well I go up stairs for about 30 minutes. When I go back to my car, it starts fine and I drive the the skating rink, then to a movie, and back home. Total of about 30 miles of driving. I wake up the next morning, it starts and I go to the eye doctor. When I come out, it doesn't start, just cranks. I wait for about an hour, same thing. I get it towed to my house and this morning I changed the fuel filter. It started up fine (ran a little rough for a little while). I turned it off and started it 3 more times. Come up stairs for about 40 minutes. Go back down, now it wont start again. I've done the wiring upgrade with the svt focus fuel pump all the way to the fuel pump itself. The times it had ran, its run and idles fine. Any ideas?
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[Drak]

put a pressure gauge on the fuel line to see if you are getting pressure,if so then more than likely its not your fuel system, and if its not fuel then if you have a multimeter check if you are getting voltage to the coils also you could always check the OBD2 port to see if any codes came up. and also make sure your MAF sensors wires are secure. just some steps to try to help narrow down the field

[Ruffellbaker]

Could be a CCRM problem.