Closed loop Question
Thread Starter
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Joined: Oct 2010
Posts: 199
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From: Des Moines, Iowa
Car: 1991 Camaro RS yellow
Engine: was '91 V6, now '89 5.7/355 TPI
Transmission: 4 speed automatic
Axle/Gears: Moser 3.73 with zexel posi
Closed loop Question
If there's no CAT and no O2 sensor behind, will car run in closed loop all the time?
Joined: Dec 2004
Posts: 16,734
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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
Thread Starter
Member
iTrader: (2)
Joined: Oct 2010
Posts: 199
Likes: 4
From: Des Moines, Iowa
Car: 1991 Camaro RS yellow
Engine: was '91 V6, now '89 5.7/355 TPI
Transmission: 4 speed automatic
Axle/Gears: Moser 3.73 with zexel posi
Re: Closed loop Question
I thought there were two 02 sensors, the second behind the engine on the CAT. Is that right?
Joined: Oct 2001
Posts: 12,212
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Closed loop Question
Only on 96 and up cars
Thread Starter
Member
iTrader: (2)
Joined: Oct 2010
Posts: 199
Likes: 4
From: Des Moines, Iowa
Car: 1991 Camaro RS yellow
Engine: was '91 V6, now '89 5.7/355 TPI
Transmission: 4 speed automatic
Axle/Gears: Moser 3.73 with zexel posi
Re: Closed loop Question
Thank you.
Turns out I have a Code 56, bad ECM. Could be a bad solder or EPROM.
Turns out I have a Code 56, bad ECM. Could be a bad solder or EPROM.