1998rollover
Well-Known Member
- Joined
- November 10, 2008
- Messages
- 231
- Reaction score
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- Year, Model & Trim Level
- 1998 Mountaineer
Is there a DIY way to test if an EEC IV computer is defective? All the parts stores around here have gotten rid of their PCM testing equipment.
I have a 2002 Sport Trac with a 1998 Mountaineer 5.0 drivetrain. It suddenly quit running while at idle. I changed the crank sensor and it would run but very horribly. I'd put the original PCM from the Mountaineer in, to no effect, before changing the crank sensor.
Then I put the PCM in which I'd bought online, programmed with the VIN and latest software. That is the one installed when it died. No spark. So I reinstalled the other one, again no spark - after it had just been running with that PCM.
Of course I disconnected the battery when swapping PCMs!
I have a 2002 Sport Trac with a 1998 Mountaineer 5.0 drivetrain. It suddenly quit running while at idle. I changed the crank sensor and it would run but very horribly. I'd put the original PCM from the Mountaineer in, to no effect, before changing the crank sensor.
Then I put the PCM in which I'd bought online, programmed with the VIN and latest software. That is the one installed when it died. No spark. So I reinstalled the other one, again no spark - after it had just been running with that PCM.
Of course I disconnected the battery when swapping PCMs!
