Quote:
Originally Posted by G-Sting
Got it, thanks all. Will begin to check it out.
The Z starts right up, idles great, runs smooth and like a beast. Appears to be all stock, 19k miles. Wasn't driven but 1,700 miles in the last 9 years.
Narrow it down any?
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Check between Vacuum Pump and Plenum first....then check Drivers side Plenum Vacuum Connection to see if the
Check Valve under Plenum is leaking. Disconnect that vacuum fitting and hold finger over end of vacuum line to see if pump stops cycling...if pump stops cycling the
Check Valve is leaking.
Checking for Vacuum Leaks TIPS
Finding Vacuum Leak TIPS
1. Secondary Vacuum System
The first photo shows details of the vacuum plumbing around the
Secondary Vacuum Solenoid and
Secondary Vacuum Reservoir Including the
Check Valve. The second photo is the complete
Secondary Vacuum System.
The
Check Valve allows plenum vacuum to be seen by Secondary Vacuum Reservoir but does not allow plenum to see Vacuum pump vacuum.
