2001 Cobra No Start

Ether is much more flammable than gasoline. If it lit off ether but not gas could be an indication of a weak spark condition.

With it hitting on starting fluid, it tells me I have spark but no fuel.

- I have fuel pressure at the shrader valve at the rail.
- I verified voltage at the injector harness and a grounding pulse during cranking on the other wire.

I don’t have a noid light but shouldn’t these tests prove the injector harness out?


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Injectors are pulsing as well.

To recap: Fuel pressure at rails, injector pulse, have spark, will hit on ether. Seems I have all the recipe for ignition. Even if the timing was completely off, I’d at least hit or backfire. I’m getting none of that.

Anyone got any suggestions? I’m lost as my next steps. I’ll grab some fresh plugs but don’t think that’s gonna change anything.


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I still think you have timing off and/or weak spark. It is VERY easy to fire off ether. Gasoline not so much. Since the timing is all electronically controlled (as far as my brain knows) if you have the right signal and you have the valve timing correct low voltage to the ignition system seems the logical cause.

Horseplay said:

I still think you have timing off and/or weak spark. It is VERY easy to fire off ether. Gasoline not so much. Since the timing is all electronically controlled (as far as my brain knows) if you have the right signal and you have the valve timing correct low voltage to the ignition system seems the logical cause.

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Conducted a compression test and 180-190 PSI on all cylinders, so timing has to be correct.

I sprayed gas in the intake and it fires that way as well. Clearly a fuel delivery issue.

Put 5 gallon of fresh gas in and used some to “prime” the throttle body with. It fires and runs off that fuel.

Made everything normal and it’s now trying to hit.


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Is anyone still reading this? lol

Still fighting issues. Got it running after cleaning the IAC.

Fuel pressure at the shrader is 55-60 psi, which I think is too high. It will start then kinda stalls out after a bit. Finally got it to run long enough to throw a code. P0190, which points to the FRPS. Unplugged that and the car starts and runs but is pig rich. As soon as I plug the FRPS in, engine stalls out. I have a new FRPS coming Monday.

I need to get Forscan so I can monitor this thing apparently.


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I'm reading it. Following it? Not so much. I've purposely only allowed myself to understand all the modern engine control stuff minimally. Enough to have a basic understanding of how it all functions. Deep diagnostics and troubleshooting are beyond me on that crap. My brain is deep into 40's/50's hot rod now. The more hand made and primitive the better. I'll get back into the new stuff once I get this coupe done and I am back on the truck project.

So keep posting and I'll keep reading. It is interesting and educational for some of us.