Guys, Ive been hunting a fuel issue on the GF's 86 GT for a bit now, and am left scratching my head...
Before I go into detail, her 86GT has a '93 engine, with MAF and I believe an fms fuel pump (255?) No other mods to the engine, other than underdrive pulleys, and ac/air pump delete. LT BBk Headers, and dumped Flows.
Car has run flawlessly since she got it but about a month ago, as she turned the key on, I heard the pump prime, and then it sounded like it kind of fell off, like weakened and died. Car hasnt started on it's own since.
No prime of the pump, no pressure, no run. Pump can be turned on jumping it from the battery to the orange wire on the pump relay. Car runs just as it always has like that.
So far I've
-Checked fuses - all ok
-swapped relay from my car - no good.
-swapped ECU (known good) - no good.
-Swapped Ign switch - no good
-Pulled the engine harness and checked for breaks, and bare spots - nope here, either.
Guys, I cant figure it out for the life of me, and I'd rather not run her pump to a switch, or rig the wiring to work when she turns the key on by attaching the pump feed wire to an accessory source, with a fuse link and everything.
86 GT, H&R Race Springs, Tokico Illuminas, MM Caster/Camber plates, Bassani E/L CC Headers, Pypes Catted X, and MagnaflowCatback, Steeda Tri-Ax, 3:73's, AlpineCDA-9856 Headunit, Image Dynamics IDQ 10.2 DVC Sub, RF 201S Amp