Bare with me. First because I'm a girl and this is my first jeep and secondly because this is number two jeep sitting dead in the the garage.
My jeep is fuel injected and started sputtering backfiring and just general misbehaving. We replaced the O2 sensor and that seemed to clear that up. However I wouldn't know because I haven't been able to drive it much.
We also found a wire that was shorting out under the dash. When you'd move this wire the jeep would shut off. Almost like someone turned it off. We replaced the patch of the wire that was rubbed and shorting out.
Now I have no power going to the fuel pump. The jeep turns over fine but when you turn the key on you cannot hear the pump start up. We checked the power coming into the pump, no power. If you jump the fuel pump, where the relays plug in the pump comes on. Ok, replaced the relays. Still no power to the pump.
My husband being a drama queen bought a whole new computer. I put it in today, still no power to the fuel pump. I didn't think it was the computer anyway since you can jump it and the pump comes on.
I know it has a crank shaft position sensor. However my husband isn't talking to me (sigh) and says I can fix it myself. (we are racing to see who can get their jeep running first. He has a 90 yj which seems to have the same issue.)
So are there other sensors or or fuses I should replace. I know there's no real way to check a sensor.
I just don't understand why fixing a short would cause it not to run.
Oh, one more thing. The reason we went looking for a short was because the amps were running very hi 18 or so. But fixing the short did not bring the amps down and then the pump just stopped coming on.
I'd put a new alternator on it and pulled it and had it checked, it's good.
Thanks in advance.