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Need help debugging TACH problems... Need help debugging TACH problems...
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Old 04-18-2004, 09:41 PM
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Join Date: Oct 2003
Location: Yorba Linda, CA
Cobra Make, Engine: SPF w/392CI stroker
Posts: 3,293
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Unhappy Need help debugging TACH problems...
Stock Smith gauges on Superformance.

After having my MSD checked out on a warranty repair (no problems reported by them), I experienced "tach bounce" on the initial shakedown run after reinstalling. I then installed a different connector wire from the MSD box to the SPF harness. I then started getting a sporadic reading while driving and nothing at idle or while stopped.

Over the weekend I went for two drives and now the entire tach has gone dead. I've never had a problem previously.

How do I go about checking where the fault is? I'm not very good at debugging electrical, but it shouldn't be that tough, huh?

-Deano
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