Hi I'm pulling out my hair trying to find the issue I've been dealing with on my uncle's 1988 Dodge power ram 4x4 throttle body fuel injection, so I can only get it to run when I have my foot to the floor and whenever I let off it dies no matter what I do, can anyone possibly point me in the right direction on what could be causing the issue?

 

Check the coolant temp sensor the PCM uses to decide mixture. (two-wire sensor. there might also be a one-wire temp sensor, but, I don't know for sure.) Plugging in with the scanner that can read data would be your best bet.

 

Any codes?
http://www.allpar.com/fix/80s-codes.html

 

Might need the IAC motor reset. Should run without coolant temp sensor plugged in, thats how you set your base timing on that motor, unplugging the coolant temp sensor. 2 wire sensor for the computer and single wire sensor for the gauge, both are up front. Pull a couple plugs, are they black? How old is the fuel? How long since it ran?

 

Any information on how to reset the iac motor. I just replaced mine with a new one.