97 XJ sudden no spark conundrum.
01-12-2019, 08:08 PM
#16
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Model: Cherokee (XJ)
That's a Texas-sized 10-4 good buddy. No activity from A7 with the test light set up that way. I wanted to do my due diligence to diagnose the problem before I just threw a PCM at it. It's taken a lot of patience. Hopefully it pays off.
01-13-2019, 11:11 AM
#17
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I hope it pays off to. On the bright side, it never hurts to have a spare PCM on the bench if you should find that it does not solve the problem. Later on today, I'll try to see if there is any other alternative explanation for a closed ASD relay - but no ignition coil driver activity.
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