finally tgo is up...now i need help runnin rich
Thread Starter
Joined: Jul 2002
Posts: 2,789
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From: NOR CAL USA
Car: 89 iroc-z 5.7tpi 350,
Engine: 5.7tpi 350,
Transmission: T-56
finally tgo is up...now i need help runnin rich
well.....at my work i scanned the car.. tps voltage was good, and maf was right where its supposed to be, but the o2 sensor was low computer was saying it was lean and blm's were maxed out at 150
so i changed the o2 sensor and made a **** of a difference, also traded maf's with a friend witha brand new one no difference.
where do i begin fuelpressure is at 45psi and holds steady, its running so rich you can smell raw fuel out the exhaust also comming out of the exhaust
maybe related but i ran one bottle of nos in my car, a zex dry kit borrowed from a friend...
so i changed the o2 sensor and made a **** of a difference, also traded maf's with a friend witha brand new one no difference.
where do i begin fuelpressure is at 45psi and holds steady, its running so rich you can smell raw fuel out the exhaust also comming out of the exhaust
maybe related but i ran one bottle of nos in my car, a zex dry kit borrowed from a friend...
Senior Member
Joined: Oct 2001
Posts: 571
Likes: 0
From: Starkville, MS
Car: 1991 Camaro Z28
Engine: 350
Transmission: 700R4
150 BLMs show that the computer thinks that it's ruinning lean. Yet you say it smells rich. Is there a chance that the new O2 is bad or that you have an exhaust leak before the O2. Sounds like the car is reading more air at the O2 and dumping more fuel in to compensate.
Thread Starter
Joined: Jul 2002
Posts: 2,789
Likes: 0
From: NOR CAL USA
Car: 89 iroc-z 5.7tpi 350,
Engine: 5.7tpi 350,
Transmission: T-56
Originally posted by Black 91 Z28
150 BLMs show that the computer thinks that it's ruinning lean. Yet you say it smells rich. Is there a chance that the new O2 is bad or that you have an exhaust leak before the O2. Sounds like the car is reading more air at the O2 and dumping more fuel in to compensate.
150 BLMs show that the computer thinks that it's ruinning lean. Yet you say it smells rich. Is there a chance that the new O2 is bad or that you have an exhaust leak before the O2. Sounds like the car is reading more air at the O2 and dumping more fuel in to compensate.
thats exactly whats happening... would it make a difference that i disconnected my muffler??? i have it hanging just took the clamp off so cats are still on...by the way i have stock multec injectors now
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