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Is it because the idle is too high? Or is there another possible issue?


The easiest way to check that would be to run the idle down to 900 and see what happens! I do know that when my idle is set correctly, the advance stays at 12, but the INSTANT I crack the throttle open, it jumps WAY to the left. I think this is because the ECU senses the TPS coming off idle and compensates.

Check your TPS switch... if the idle contacts are not contacting, your ECU could be confused!


C/YA!
Jeff
'88 Trooper
2DR LWB 4ZE1 5SP
bone stock DD