How old is the ignition switch......just on the odd chance test it
Brand new this summer, actuator broke...but I replaced the switch at the same time.
and I don't think old fuel filters will prevent a vehicle from starting unless they've been "fouled" by water or mud from off roading etc. ...though it can't hurt to change them if they haven't been done for a while...
Fuel filter only several months old, no bad fuel through the tank...that I know of. New fuel pump recently, good fuel pressure, its getting fuel (but perhaps in various amounts).
Sounds like the FPR = fuel pressure regulator is ok with those psi numbers, any issues with injectors.....IDK
Injectors are new....less than a year, been trying to slowly get new parts on the old bronco...bit by bit.
You said you replaced the distributor and ignition module, was it a TFI = thick film integraded style...did you test the old one, several times for passing grade before replacing...
Yes TFI (gray) same type I've running for 20 years. No...didn't check, I keep a couple of spares at all times.
Does the 90 BKO have a PIP = profile ignition pickup on the distributor shaft.....?
Yes, new with new distributor, cap and rotor.
Definately test the EVP sensor that sits on top of the EGR valve and see what you come up with, maybe it needs to be replaced if it's been on there for a while based on the fault codes.
Both parts new...this summer. Also new IAC
ECT = engine cooling temp sensor is a fuel manager at cold start and normal operation but any issues with it can prevent the engine from starting, rich condition etc. etc.
Hmmmmmm....could be a problem.
Is the alternator putting out enough voltage....?
Yes...good 160 amp alternator, good strong battery.
Just a few thoughts!
Thanks for your input Sir.