I posted on almost this same topic back a week ago or so (here) and based on advice have removed the plenum again, found the plenum gasket was torn, replaced gasket, done throttle body bypass, and put everything back together again. I just finished last night and started the car again. It starts and will rev, but simply won't idle at all. It ran smooth with my foot on the gas, but the second the throttle body valves close the engine dies. Could this be another vacuum leak, the idle air unit, something else???
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injector install-- car won't idle - jm12rr09:12:00 06/19/08