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Old 11-23-2005, 11:53 AM   #955 (permalink)
FWombat
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Location: Tacoma, WA
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Default Re: AEM Ultimate Resource Thread>>>>

Quote:
Originally Posted by VR-4ever
So I am pulling the tach signal from an output of the aem to the cluster. I will have to track down which wire this is on the harness.
Nope, that's not quite right. The stock tach signal doesn't come from the ECU at all. The tach signal comes from the PTU - that little box in the engine bay under the ignition coils.
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'94 Danube Blue VR-4
Replacing everything that moves.

'94 Pearl Yellow VR-4
It's dead, but its drivetrain lives on!
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