454 TBI running rich?
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Joined: Apr 2014
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From: Land Of 10,000 Lakes
Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
454 TBI running rich?
I have a 350 with vortec heads and an lt4 hotcam. It's fed by a 454 throttle body. It's timed right and adjusted right, but it seems like it's running too rich. Any suggestions?? And yes, the 02 sensor is in.
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Re: 454 TBI running rich?
Does it SEEM like it's running too rich, or is it ACTUALLY running too rich?
Thread Starter
Member
Joined: Apr 2014
Posts: 184
Likes: 0
From: Land Of 10,000 Lakes
Car: 1991 Camaro RS
Engine: Built TBI 350
Transmission: T-5
Axle/Gears: 3.42 Posi
Supreme Member
Joined: Feb 2011
Posts: 1,589
Likes: 89
Re: 454 TBI running rich?
HOW DO YOU KNOW that it's rich? What is the short- and long-term fuel trim numbers? What is the O2 sensor voltage? How many O2 crosscounts do you have at idle?
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