Flooding issue

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Old 06-10-2017, 04:42 PM
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Flooding issue

Hi everyone I'm new here an Im not sure if I'm posting in the right place or not but I have a 92 f150 with a 302 an I can't get it to start unless I put the accelerator to the floor an even then is runs terrible an I'll slowly let off of the pedal an it will die I've replaced the tps fuel pressure regulator an fuel filter an both fuel pumps an it holds good fuel pressure I'm at the end of my rope with this any help would be greatly appreciated thanks in advance
 
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Old 06-11-2017, 09:27 AM
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Have you checked for codes? You need to run the Key On, Engine Off test first. Also known as KOEO.

The CEL doesn't have to be illuminated for codes to be stored.

The ECT and IAT also play a part in starting, to a lesser degree. I have read where the ECT can cause a similar problem when starting if it's bad.
You can test both of those sensors as well. If you check for Key On, Engine Running (KOER) codes on a cold engine, you will see them since the engine hasn't been warned up.

Have you checked the FPR for a ruptured diaphragm? These can go bad and when the diaphragm ruptures I side, raw fuel will get sucked into the intake and cause a flooding problem.

Another problem that masks itself as flooding is the EGR valve. If the pintle inside doesn't close off, then when the truck starts it's sucking in exhaust gases and the truck runs terrible. It becomes a huge vacuum leak.
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You can also try posting your problem in the '87-96 Truck category for a wider audience.
 
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Old 06-11-2017, 07:47 PM
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Thanks for the info I haven't checked to see if there is any codes yet but I'm going to get a scanner this next week I'll post my results
 
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