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His tach jumps around about twice per second. All early 944 tachs connect directly to the coil wire from the DME. Bad tach could be shorting the coil wire to ground.
If Gordon's tach was working correctly I wouldn't have questioned it.
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Hugh - So Cal 83 944 Driver Person
NOT a 'real' Porsche -- Its Better!!!!
When was the last time you changed your timing and balance belts and/or cam chain and tensioner?
New Users please add your car's year and model to your signature line!
Never break more than you fix!
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