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antitheft system

1K views 4 replies 3 participants last post by  Bluegrass 
#1 ·
Hi Guys im back,, it wasnt the antitheft system, had it disabled and its still doing its thing,, intermitten starting problem,, the engine turns over but no power to ignition coil or distributor,, this vehicle is a 94 F150 XLT, 302 EFI, auto,, when it starts it runs great,, but u never know when it'll leave u stranded,, some time for a few hrs,, and sometime for days.
any ideas, help is greatly apreciated..
 
#5 ·
The eHOW references are very poor and misleading.
ON A FORD:
The PIP sensor in the dist. is an RPM indicator only and sends it's signal to the computer.
Thereafter the computer closes a signal to the fuel pump relay, does the ignition control fire order and fuel control in a correct timing order.
The PIP does not fire the coils or injectors directly.
.
Your intermittant no start is temperture sensitive.
The most likelyhood is the TFI.
Try a can of cool spray intended to cool parts to see if they change operation.

All the signaling goes through the cabling attached between the PIP and the TFI back to the computer.
You can have failure in any one of these locations.
Just talikng and guessing is no way to find the cause.
Some one has to get in and do the work to find the cause.
Is it a lack of fuel, a lack of ignition, or both?
At least this tells you what to go after.
Good luck.
 
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