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Old Jul 4, 2003 | 09:43 AM
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adoor4u
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Unhappy 351w EFI Wont start?

A few days ago my 1992 351W EFI would not start. A friend told me to spray wd40 in the cap and wipe it out, I did and the truck started but ran ruff with no power at all down the road with a very bad smell out the pipe. 20mph was the best I could get out of it. I replaced the egr valve,plugs,wires,cap and rotor and it ran fine for two days. Now it wont start again, sprayed and cleaned the new cap, got good spark, got good fuel pressure at the fuel rod?????

Any help would be greatly appreciated.
 

Last edited by adoor4u; Jul 4, 2003 at 09:49 AM.
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Old Jul 4, 2003 | 05:08 PM
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adoor4u
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351w EFI Wont start?

Also I have replaced the ignition modual and still no luck?
 
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Old Jul 5, 2003 | 06:51 PM
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351w EFI Wont start?

I had a similar problem with my '89 351W EFI. Turned out to be the Throttle Position Sensor. Hope this helps
 
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Old Jul 5, 2003 | 08:31 PM
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351w EFI Wont start?

sounds like a plugged cat or bad FPR to me.
 
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