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QB93Z · 07-19-2009

I should clarify. The plenums are easy to remove, but the 93-95 plenum is more of a pain to re-install because there are two more electrical connectors (one is for the Secondary Vacuum Sensor which on the 90-92 is over by the battery), and there is a hard plastic vacuum tubing that has to be plugged into a double connector deep in the valley. It pops out if you raise the plenum too high. The EGR line on the later LT5's is not too much of a problem since it is on the "outside" of the plenum.

I am practicing for Corvettes at Carlisle. I will pull the plenum on Darrin's 1990 ZR-1 and replace the plug wires, in the ZR-1 area of the Fun Field. I hope lots people attend so that we can have a good Q&A session and share under-the-plenum knowledge.

Jim

07-19-2009	#3
QB93Z Join Date: May 2007 Location: Westminster, Maryland Posts: 3,684	Re: Fixed a Secondary System Vacuum Leak I should clarify. The plenums are easy to remove, but the 93-95 plenum is more of a pain to re-install because there are two more electrical connectors (one is for the Secondary Vacuum Sensor which on the 90-92 is over by the battery), and there is a hard plastic vacuum tubing that has to be plugged into a double connector deep in the valley. It pops out if you raise the plenum too high. The EGR line on the later LT5's is not too much of a problem since it is on the "outside" of the plenum. I am practicing for Corvettes at Carlisle. I will pull the plenum on Darrin's 1990 ZR-1 and replace the plug wires, in the ZR-1 area of the Fun Field. I hope lots people attend so that we can have a good Q&A session and share under-the-plenum knowledge. Jim