TPI Plenum
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Joined: Jul 2010
Posts: 833
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From: The Jersey Shore
Car: 1991 Firebird Convertible
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 3.45 9 Bolt Posi
TPI Plenum
Does anyone have a diagram of what everything in the plenum is and / or goes to? like vacuum lines and sensors?
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Joined: May 2009
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From: Delaware
Car: 91' Firebird SOLD
Engine: 350 TPI +bolt-ons
Transmission: 700r4
Axle/Gears: 3:42
Re: TPI Plenum
passenger side should have 3 ports(nipples)near the distributor, rear one is for heater vacuum,middle should be map sensor and front one is fuel pressure. Honestly,it doesnt matter which ones u use for what,so long as the hose fits. On the opposite side (rear of plenum) is for brake booster. Under the plenum is the AIT sensor (air intake temp sensor).Also MAP sensor bolts on the plunum in its upright position back by the 3 ports. It should have a small "L" shape hose
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
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