• Register Today It's free! This box and some ads will disappear once registered!

^^Searches ExplorerForum.com^^

Testing for defective EEC V computer?


Active Member
November 10, 2008
Reaction score
City, State
Weiser, ID
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!

Thread starter Similar threads Forum Replies Date
J powerground eec EEC V 0
5 Tell me about eec v EEC V 1
R Does the MAF and injectors need to be compatible as in EEC-VI? EEC V 7
shucker1 Eec-v EEC V 4
Turdle Help from the EEC-V gurus EEC V 0
F Pinout Diagram for EEC-V ECM EEC V 6
D Pulling EEC-V codes EEC V 5
B New EEC-V? EEC V 7
L EEC-V Problem? EEC V 2
E Introdcution: EEC-V Computer EEC V 2

Similar threads