I would still test the ign. Module. YOU MUST use the white/clear grease on ign. Module base, and make sure dist. Vents are clear. Module must have clean ground to dist. Base.
If you have any exhaust leaks, they can cause havoc on the wiring.
ECM could be bad, also check junction box C500 next to battery.
Also measure slack in timing chain by rotating engine by hand (socket and ratchet on balancer) with dist. Cap off. Rotote engine clockwise until rotor moves, then counterclockwise until rotor moves again, measure degrees of rotation until rotor turns again.
Firing order is 1-2-3-4-5-6 and #1 is on trunk side on assy side. 1-3-5 on trunk, 2-4-6 on firewall, 2 is opposite side of #1.
Many electrical problems with the Fiero are simply wear to electrical harness from many heat cycles and not much ventelation in the engine compartment.
Look on net for Fierostore. Com. They sell many parts for this car.
Check fuel pump by applying 12V to terminal "G" of ALDL, pump should run, if not, then FP relay, next to AC relay, you can swap them, they are the same.
Sunday, August 30th, 2009 AT 7:01 AM