B1s1 really lean
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Joined: Aug 2015
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B1s1 really lean I have a 1969 nova that I put a 2001 ls engine in. It's a 5.3. I also the biggest cam I could get without changing heads on it. Before I put the cam in, I had no problems with my tune. I went to a SD tune with the cam. At idle the car is fine on o2 sensors. WOT the o2 sensors are fine. When I let off the throttle completely when I am going down the road b1s1 reads really lean and asks for more fuel than at WOT. It only does this when I let off completely and only on b1s1. New o2 sensors and I put a new intake gasket. Any ideas or help would be appreciated. Thanks
