LS3 Running, but rough, and rich....
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Joined: Apr 2008
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LS3 Running, but rough, and rich....
Car is ALIVE!!! Sounds pretty pissed off. I have a mid sized cam, and open headers. Car was tuned before I dropped in the car. Wondering if my open headers could be causing the O2's to give funny readings? As you give it throttle, it's pretty responsive, but will sputter and die at idle, and enough fumes to burn your eyes.... Suggestions??
I'll get a video tomm and post it on here so everyone can see where I'm at so far.
I'll get a video tomm and post it on here so everyone can see where I'm at so far.
Senior Member
Joined: Jul 2002
Posts: 631
Likes: 2
From: Saskatchewan
Car: 1992 GTA
Engine: LS1
Transmission: T56
Axle/Gears: 4.10
Re: LS3 Running, but rough, and rich....
Ya open headers are bad when 02's are involved, ecm will be tossing fuel at it like no tomorrow cause the 02's will be pegged lean. Hook up your exhaust and carry on 
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Joined: Feb 2006
Posts: 1,547
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From: 39.84N 105.11W
Car: '89 Trans Am GTA
Engine: WAS 350 - now L92 (alum. 378/6.2L)
Transmission: WAS 700R4, now a built T56
Axle/Gears: 3.27 9-bolt
Re: LS3 Running, but rough, and rich....
Originally Posted by nhedrick007
Car is ALIVE!!! Sounds pretty pissed off...
Man oh man, I can't wait until I can say that... 
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