Code 33 91 LB9 stalling and idle issues
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From: Oregon USA
Car: 91 firebird formula ws6
Engine: TPI 305 (R6P)
Transmission: R6P t5 5 speed
Axle/Gears: 3.42:1 Posi Diff
Code 33 91 LB9 stalling and idle issues
91 formula 305 tpi LB9 I had some rough idling issues and stalling after awhile of driving and I got a code 33 when my ses light came on. I checked the voltage on the middle wire on the map connector and it read 5volts. So that leaves vacuume and bad ecm but it has a new ecm. Where would I check for a vacuume leak? I'm stumped. Thanks for any answers!
Joined: Dec 2004
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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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