Firyls
NAXJA Forum User
- Location
- Hesperia, California
I recently purchase an 89 XJ limited, I6, Automatic, Tow Package with rear Dana 44. Its my first Jeep.
I have been chasing down an issue where it would always sputter around 3000RPM (it actually wouldn't let me go past 3000rpm at all). It would still get up to 80-85mph fine as long as I was easy on the throttle. I've been testing sensors using the various Renix guides out there and everything checked out. Yesterday my local junkyard had had a sale going on engine computers for 25 bucks, so decided to try replacing that.
Sure enough as soon as I swapped in the replacement computer the engine is now running beautifully, however when I turn the ignition off the the engine remains running (all the accessories, radio, ect will turn off). Thinking maybe I just had another bad computer with a different fault I went ahead and got another computer. This 2nd one again runs great, but wont turn off the engine . My original computer will still turn off and on the engine but has the 3000rpm sputter.
The 3 computers have these model numbers:
53007842 = Original Computer with sputter
EF8953005428 = Junkyard computer that wont shut engine off
EF8953005026 = Junkyard computer that wont shut engine off
Am I missing something with the original computer? Is it the fact the original computer didn't have EF89 on its part number important?
I was under the impression that all I6 automatic transmission computers from 87-90 were interchangeable. Anyone have any idea's before I use one of the newly acquired computers and just wire in a kill switch?
I have been chasing down an issue where it would always sputter around 3000RPM (it actually wouldn't let me go past 3000rpm at all). It would still get up to 80-85mph fine as long as I was easy on the throttle. I've been testing sensors using the various Renix guides out there and everything checked out. Yesterday my local junkyard had had a sale going on engine computers for 25 bucks, so decided to try replacing that.
Sure enough as soon as I swapped in the replacement computer the engine is now running beautifully, however when I turn the ignition off the the engine remains running (all the accessories, radio, ect will turn off). Thinking maybe I just had another bad computer with a different fault I went ahead and got another computer. This 2nd one again runs great, but wont turn off the engine . My original computer will still turn off and on the engine but has the 3000rpm sputter.
The 3 computers have these model numbers:
53007842 = Original Computer with sputter
EF8953005428 = Junkyard computer that wont shut engine off
EF8953005026 = Junkyard computer that wont shut engine off
Am I missing something with the original computer? Is it the fact the original computer didn't have EF89 on its part number important?
I was under the impression that all I6 automatic transmission computers from 87-90 were interchangeable. Anyone have any idea's before I use one of the newly acquired computers and just wire in a kill switch?