I just replaced the wiring harness with an updated used Delphi harness and had the throttle body rebuilt by BBA. Put it all together and it's running great and no CEL. The only complaint I have is that the tach is dead at idle. Once I give it gas it comes to life and reads accurately. I assume the tach is controlled via the ECU getting a signal from the crank possition sensor but I'm not sure. Any ideas?

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Andrew Villasenor
805-720-5057
1984 300D turbo 5-speed manual(daily driver)
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