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These should give you a start on understanding which injectors are on the same circuit and the pinout of the PCM, as well as which 5 wires are what at the distributor.
It still doesn't run?
* His 1994 will only have 3 wires at the distributor
The rest are on the fender mounted TFI module
If it runs on ether, the problem is fuel
No pip signal means no noid signal regardless if the ignition system picks up the pip signal and the truck runs on ether
I'd have a 1994 PCED out looking at that pip circuit and the processor, also going through the no start routine
* 1994 OBD1 has several pids you can check with a NGS as well
If it runs on ether,
You got no noid light or what? No fuel pressure?
The thread I referred to in post 20 with the 4x4 code ended up being a bad PCM but the OP has not been back to say if he did the pinpoint testing from that thread.
Last edited by My4Fordtrucks; Mar 17, 2026 at 10:02 AM.
It still doesn't run?
* His 1994 will only have 3 wires at the distributor
The rest are on the fender mounted TFI module
In post #26 he mentions he has 5 wires at the distributor of his 1994 5.8L, which is what the wiring diagram are for, which also show 5 wires. I'm a bit confused by his comment of 7 wires that connect to 5 wires. Maybe he meant 7 terminals, or maybe the engine has been replaced at some point? Presumably it ran at one time during his ownership, but I don't remember that question being asked so I'll ask it.
@WhyFord Did this Bronco ever run in the time you've owned it?
