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tomtom72 · 01-24-2009

The part labeled Vacuum differential sensor is the part we all call the secondary MAP sensor. The hose feeding it comes out of the left side of the plenum between the front four & rear four runners, if I remember correctly. That MAP is bolted under the bracket that the ECM and cruise control diaphram is mounted on, just on top of the battery.

Tom

01-24-2009	#28
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,609	Re: high idle The part labeled Vacuum differential sensor is the part we all call the secondary MAP sensor. The hose feeding it comes out of the left side of the plenum between the front four & rear four runners, if I remember correctly. That MAP is bolted under the bracket that the ECM and cruise control diaphram is mounted on, just on top of the battery. Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member