2.3L ('83-'97) 2.3l

[SenorNoob]

Or wiring...

 

[scotts90ranger]

Yeah, if there's an issue with the signal wire then it could be an issue. Aftermarket TFI modules are known to be iffy as well.

 

[88ranger2.3snowman]

Yeah, if there's an issue with the signal wire then it could be an issue. Aftermarket TFI modules are known to be iffy as well.

How do I test it? And the tfi would affect the signal to the injectors?

 

[scotts90ranger]

I think parts stores can still test them but I don't know how reliable it is as bad modules give similar symptoms to what you're saying I think...

There's a pickup coil thing in the distributor that the TFI module interprets for rpm and timing signal then sends that signal out to the computer for injection. I believe I have the mode of operation correct, assumption based on the GM Voyager system we use at work that's fairly similar but more robust...

 

[88ranger2.3snowman]

New ecm and new battery. Still not running. I’m all out of ideas

 

[88ranger2.3snowman]

So I just re timed everything and got that sorted. I put a noid light on my injector harness and the only way I can get a strong light is opening the throttle to a certain position. Would that mean my throttle body position sensor is bad?

 

[SenorNoob]

AFAIK, the only thing the TPS should have to do with injectors firing is if it's reading WOT (IIRC 4.5v+) that disables the injectors for "flood clear mode".