92 Pontiac grand prix 3.1L , Injector fuse blows , eratic spedometer

Ive got a 92 pontiac grand prix with a 3.1 lit engine wile driving i can experience voltage fluctuations wich turns everything off and on fast , Radio looses programing , also my spedometer will go up and down up to

125 mph ,, and back to normal ,, recently it started burning the injector fuse , almost every day 1 fuse blown ,

a year ago i got a voltage code from the comp . ? do these cars have a voltage regulator or is it inside the alternator ,, any help

Runs great ! only for these probs , which dont ocur every single time !

Reply to
Bokiman
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Sounds like a grounding or bad battery connection to me.

Reply to
Scott Buchanan

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