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Does the engine continue to run with starting fluid?
Are there any codes in the computer?
yes runs with starting fluid no there is no codes
What is the fuel pressure at?
SOunds to me like you just have bad fuel injectors.
They short out causing this problem
Disconnect it and with an ohmmeter, check resistance between pins A and D, then B and C. Should have between 4-5 ohms on each pair of wires. If resistance is lower than 4 ohms, then the upper plenum will have to be removed and each injector resistance checked individually. Each injector should ohm between 12-12.5. Anything below 12, and it should be replaced.
I hope this helps. You can always accept my answer now, and repost back again later on if you have any more questions. If you want to discuss it some more just hit "reply", it's free to do so otherwise don't forget to hit "accept" and leave positive feedback if you found my answer helpful.RegardsAMEDEE
ill give it a try will let you know what happens thanks mark