ryan
NAXJA Forum User
- Location
- logan utah
I have a 92 4.0 and I did something stupid. While jumping a dead battery in my jeep, I must have screwed something up and either reversed the polarity, or grounded the wrong cable from the good battery. Unfortunately I don't know exactly what happened, which probably makes things a little more difficult. Anyway, I am trying to get this thing running again and I need some help.
Current symptoms:
-engine turns over and cranks fine
-aux. fan immediately starts running
-no power to the fuel pump (I don't hear it priming and no pressure at the rail)
-no spark
-check engine light comes on, but I can't recover any codes
I checked and replaced any blown fuses (two maxi fuses for the alternator, and 2 interior light related fuses). I have not replaced any relays.
So, where do I begin? Do I need to get a new computer for this thing? I have searched, but it appears that not many people do something this stupid!
Current symptoms:
-engine turns over and cranks fine
-aux. fan immediately starts running
-no power to the fuel pump (I don't hear it priming and no pressure at the rail)
-no spark
-check engine light comes on, but I can't recover any codes
I checked and replaced any blown fuses (two maxi fuses for the alternator, and 2 interior light related fuses). I have not replaced any relays.
So, where do I begin? Do I need to get a new computer for this thing? I have searched, but it appears that not many people do something this stupid!