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Old May 4th, 2013, 03:48 PM   #1
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Default 95 f150 fuel injected 302 replaced not running need help

hi guys im stumped here i just did a motor swap on my ford truck with the same exact motor and now it wont fire unless you spray carb shot in the intake an it fires then sputters an stops an ive checked every single wire and line three times everything is hooked up but the check engine light is staying on an i borrowed my buddies code reader for the model truck but kind of looking for a quick answer could it be something with the wire harness or a sending unit
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Old May 4th, 2013, 03:48 PM   #2
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need some help guys an please no smartass remarks or anything just looking for some actual help on this one
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Old May 4th, 2013, 06:30 PM   #3
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Swap the TFI's

Swap the distributors
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Old May 4th, 2013, 07:30 PM   #4
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Does the fuel pump prime when you turn the key?
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Old May 5th, 2013, 01:44 AM   #5
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already swapped the distributors and cap rotor an plugs an wires are all new and yes fuel pump is priming an have good pressure at the block and it does fire an run when i spray carb cleaner into the intake so im assuming it has to be an injector and the check engine light turns off once it starts an runs for a second then comes back on and im waiting on a code reader to come but only thing i can think of that it would be is one of the injectors or something
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Old May 5th, 2013, 01:54 AM   #6
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See if you have power at the injectors.


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Old May 5th, 2013, 02:02 AM   #7
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ok ill do that now if i have power at all my injectors would that mean one of them is shot
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Old May 5th, 2013, 12:15 PM   #8
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It will still run with one bad injector. Sounds like they are not firing. Either the PIP sensor in the distributor isnt sending a reading to the ecm thats says its turning over and to fire the injectors or the signal return wire{ground} for the injectors isnt making its way back to the ecm.
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Old May 7th, 2013, 02:10 AM   #9
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well checked all the injectors they are all firing an working good all wires are hooked up the distributor is all good timing is all good plugs an wires are all good still wont stay running and kinda runs like shit almost like its got a vaccum leak or not getting enough fuel but pressure is good at the pump and at the block
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Old May 7th, 2013, 08:08 PM   #10
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try unplugging the MAF while its running and see if it straightens up. If so its a bad MAF.

Dumb question but it the firing order correct? 94-95 5.0 with MAF went to the high output/5.8 firing order. If your using another 5.0 that wasnt a 94-95 MAF motor it will have the older non H.O. firing order
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