That's the code I got and because of the problem, haven't driven my cobra in more than a year. Starts fine but can barely accelerate. Replaced Cap and Rotor, Plugs, and few other things. Need to figure this out so I can drive the thing again.
Fuel Pump Secondary Failure
- Thread starter 95Cobra302
- Start date
Zero Signal
Active Member
Did you leave the old gas in the tank for that long? You may be in need of a tank cleaning and new pump assembly with fresh gas and plenty of injector cleaner.
The gas was in there awhile, but I always add Stabil to it. Put an MSD coil on it 4 years ago, not sure if that could cause a problem or not.
Yeah, just cleaned the maf. It's a spark issue for sure. Hooked a timing light up and couldn't even get the #1 plug to fire the light against the pointer. It took quite awhile.
This is terrible advice. The solution isn't throwing parts at a problem and hoping for the best, without any sort of diagnosis of what might be the problem.
I'm confused. In your first post you stated
Are you now saying that it starts and idles but the timing light doesn't flash?
Or are you saying it took a lot of cranking before it fired?
Dino Dino Bambino
15 Year Member
Does the engine crank but not start, does it start but idle roughly, or does it start and idle well but splutters when you rev it up?
A clearer explanation of the symptoms would help us pinpoint the problem.
A clearer explanation of the symptoms would help us pinpoint the problem.
Starts fine, but when you rev it there is a miss. You can't get it up to speed, but if you chug it around for 10 min the rpm jumps up a little and then it seems to be fine for a little bit. Then it will start missing badly again.
I had the same thing in my Cobra clone, and in a similar situation - old gas in the tank. Here's a video of the first time I tried to start it:
YouTube - 1994 Mustang Cobra - First Engine Start
Part of that was bad gas, but that mostly cleared up by the end of the video. However, the idle never really got any better, it always started rough. The main problem turned out to be the PIP in the distributor. Swapped the dizzy out as a test and the engine started right up and settled to a nice purr immediately.
If you have a Mustang friend nearby and he'll let you borrow his distributor, swap it out and see if the problem goes away. If not, you can buy one from your local parts store and return it if the problem doesn't go away.
YouTube - 1994 Mustang Cobra - First Engine Start
Part of that was bad gas, but that mostly cleared up by the end of the video. However, the idle never really got any better, it always started rough. The main problem turned out to be the PIP in the distributor. Swapped the dizzy out as a test and the engine started right up and settled to a nice purr immediately.
If you have a Mustang friend nearby and he'll let you borrow his distributor, swap it out and see if the problem goes away. If not, you can buy one from your local parts store and return it if the problem doesn't go away.
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