92 5.0 f150 running horrible and flooding out?

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#16

07-22-2012, 03:24 PM

bremen242

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Quote:

Originally Posted by bearster18

Ok tried to do the check eng light diag on this. Found out the check eng light has either been removed or burnt out. So will need to find a obd 1 scanner cable for a ford vehicle. So I moved along.

Pulled vacuum line off fpr and no change at idle , no wetness or anything either. No issue there.

Moved on to TPS . Pulled connector with engine running an instantly truck idle smoother and idle calmed down. Plus it back in and instantly began blowing black smoke and sputtering irratic idle. Guess I found part of the problem. Now to replace that and move on! Thanks guys!

Awesome. I think there is a good article on here that describes how to calibrate the new tps.

Also, I'll have to keep this in mind when I put my 351 back together. It was running rich, and but it had a leaky fpr, three burnt plug wires, and no compression on the #2 cylinder.

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#17

07-22-2012, 07:25 PM

zstangkrewson

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if its fuel injected, unhook the vac line off the fuel pressure regulator, which is ontop of hte motor on the fuel rail. do this while it is running, if fuel comeout the top where the line came off, teh regulator seal is ruptured and itl lneed to be replaced. good luck.

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#18

07-23-2012, 12:27 AM

bearster18

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Quote:

Originally Posted by bremen242

Crap, that explains why the truck runs better but still has a pause off idle! Totally forgot to recal the tps!!! Now I gotta find this article!

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#19

07-26-2012, 08:44 AM

bearster18

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well more issues. Connected the OBD1 scan tool to truck and it will not sync with the truck no matter how i tried. Following instructions per service manual but it still wont' communicate with the EEC? What can cause this?

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