I have everything buttoned up under the hood after months of slowly accumulating parts. It starts and runs but idle sometimes is a little erratic and its running pig rich. I mean to the point where it pours black smoke and fouls the plugs after literally 5 minutes of idling. Im getting koer codes 12, 21, 22, 41, 91, 33. Originally I was getting 98 so its a plus. Ive checked all those sensors, fuel pressure and even unplugged the o2 sensor harness to see if it would run differently since the ecu wouldnt be using the o2 sensor inputs but it didnt make a difference. There is a slight vacuum leak between the upper and lower intake but I wouldnt think it could make the car run this rich.
A few tidbits. I have rebuilt 14# injectors, Ive verified the size from part numbers on a few of them. Im using the fuel injector harness from a mustang because I couldnt find one from a panther. The pinout is the same but some wires had to be extended due to different placement of the egr, iac and tps sensors. Im running an o2 sensor harness from a fox mustang as well from I think an 89 with an aod. Im not sure the pinout is the same but regardless it runs the same with it unplugged. Also I realized all those sensors that were throwing codes share an input and output. Im getting 5v at all the sensors so the input is fine but maybe the output is the issue? I currently have the fuel injector harness grounded to the throttle bracket instead of a fuel rail bolt but would that make a difference?
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A few tidbits. I have rebuilt 14# injectors, Ive verified the size from part numbers on a few of them. Im using the fuel injector harness from a mustang because I couldnt find one from a panther. The pinout is the same but some wires had to be extended due to different placement of the egr, iac and tps sensors. Im running an o2 sensor harness from a fox mustang as well from I think an 89 with an aod. Im not sure the pinout is the same but regardless it runs the same with it unplugged. Also I realized all those sensors that were throwing codes share an input and output. Im getting 5v at all the sensors so the input is fine but maybe the output is the issue? I currently have the fuel injector harness grounded to the throttle bracket instead of a fuel rail bolt but would that make a difference?
Sent from my iPhone using Tapatalk
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