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> Tach/engine jumping up and down... help please
tod914
post Jul 8 2007, 11:20 AM
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Just started happening. The car is a 75 2.0 with fuel injection. It has a pertronix ignition. The problem is, it seems to be jumping up and down in the rmp's and idles very low. Idle adjustment didnt seem to help. I checked all the grounds and contacts including the tranny strap. I swapped out the voltage reg and throttle switch and the problem still persisted.

Computer problem?

Timeing problem? timeing was done last year, fi trigger points a few years old.

Pertronix problem? its about 4 years old

Bad coil? 4 years old

Grounding issue? has new fi harness from bowsby - 2 years old

Head temp sensor? its about 2 years old.

What would you all suggest.


Thanks for the help,

Tod
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