I HAVE AN 1987 F150 WITH A 302 AND HAVE NO INJECTION PULSE DOES ANYONE HAVE ANY SUGGESTIONS

 

Well if you can explain your problem in detail we might be able to help. You're question was a little bit vague.

 

Hello Gearsmash,
Sorry I have not responded to your thread until now. I am wanting to know where the fuel injection gets its pip signal from to fire the injectors. The Chiltons manuel does not help me alot and says that it has a crank sensor however this truck does not have one. This is a project in process and am trying to get it going again and if you can help me out it would be very much appreciated.
Thanks so much
Mike Phillips Cairo, Ga

 

87 is Speed Density....they are Bank Fire...left bank and right bank...it's all ECM

I think the TPS regulates it more than anything..if the Throttle Position Sensor is bad it wont pulse at all...

 

You most likely have a bad TFI module. When it fails, there is no signal sent to the EEC and in turn does not call for firing of the injectors. This was a common issue for the 1984 to 1991 5.0 engines. Ask me how I know about this in failure in bumper to bumper 5 o'clock traffic. Never mind, don't ask. The post would be deleted. It's a relatively easy fix for a mid-level mechanic.

 

the other item to look at would be the stator will also cause no inj pulse..
high milage motor i would consider changing it.... if you find the (TFI) is bad
good luck.