Hi valvebody,
Thank you for the donation.
When the MAP sensor is not plugged in, it would cause the symptoms described. MAP sensor should be plugged inot a valve with a vacumn extension somewhere along the upper portion of rear of intake manifold. ( Looks like a oil pressure switch)
Pull the hose and see where it ends at the intak manifold and you should see the vacuum joint.
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Sunday, October 3rd, 2010 AT 4:48 AM