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...