Starts but no fuel pressure. Injectors stuck open?
E.) TPS voltage exceeds 3.7 volts with the throttle closed. This will shut off the injectors, since the computer uses this strategy to clear a flooded engine. Use a DVM, a pair of safety pins, and probe the black/white and green wires to measure the TPS voltage.
On a 94-95 Mustang, probe the black/white and grey/white wires to measure the TPS voltage.
It should be .5-.1.0 volts with the key on, engine not running. Note that if the black/white wire (signal ground) has a bad connection, you will get some strange readings. Make a second measurement using the battery post as the ground to eliminate any ground problems. If the readings are different by more than 5%, you may have a high resistance condition in the black/white signal ground circuit.
They are rebuilt injectors . Everything has been replaced on this engine it has very few miles on it.
I replaced the three leaky capacitors on both ECUs I have, I have an A9P and an A9L and it is very easy to do. There are a few HOW to’s in google with pictures and anyone can follow those steps.Yeah sorry my bad. I assume there is a compacitor that controls the fuel injectors opening. The tune I bought was tweecer. Anyone know anyone the rebuilds the old A9P ECM ?
I replaced the three leaky capacitors on both ECUs I have, I have an A9P and an A9L and it is very easy to do. There are a few HOW to’s in google with pictures and anyone can follow those steps.
I don’t think I’m very helpful to solve your rich condition but replacing those caps might help some.
Good luck
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