Quote:
Originally Posted by SouthArk370Z
You should see a pressure rise when the throttle plate is opened (less vacuum). If you don't see the drop then I would check, in order: MAP port for plugging, sensor, wiring.
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Yeah, the pressure rises when I hit the gas. I didn't rev it to red line but it easily went up to over 12 PSI when revving. Is there a specific RPM/vacuum test I should do?