Lazy front O2 after Header install.
#12
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I had this same issue. A new set of O2s fixed it. However, I believe I did swap my rears to the front and had the same problem due to miles. You need NEW, FACTORY sensors (ACDELCO) Not the Bosch bullshit some people will try and sell you on ebay.
Also I understand it is probably hard to find a tuner in Guam but ultimately the truck needs to get to a dyno and run with a live tuner. Theres **** that can be done/noticed in person that might be going on versus over email or any of that other stuff. Trust me on this one, I did it for months on my '00, its worth it.
Also I understand it is probably hard to find a tuner in Guam but ultimately the truck needs to get to a dyno and run with a live tuner. Theres **** that can be done/noticed in person that might be going on versus over email or any of that other stuff. Trust me on this one, I did it for months on my '00, its worth it.
#13
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I had this same issue. A new set of O2s fixed it. However, I believe I did swap my rears to the front and had the same problem due to miles. You need NEW, FACTORY sensors (ACDELCO) Not the Bosch bullshit some people will try and sell you on ebay.
Also I understand it is probably hard to find a tuner in Guam but ultimately the truck needs to get to a dyno and run with a live tuner. Theres **** that can be done/noticed in person that might be going on versus over email or any of that other stuff. Trust me on this one, I did it for months on my '00, its worth it.
Also I understand it is probably hard to find a tuner in Guam but ultimately the truck needs to get to a dyno and run with a live tuner. Theres **** that can be done/noticed in person that might be going on versus over email or any of that other stuff. Trust me on this one, I did it for months on my '00, its worth it.
I swapped the sensors. Tightened all the header bolts more than what they probably should have. Did a log at idle. both sensors are not in sync with each other. bank one has rigid peaks and valleys. bank two is long hills and shallow valleys.
I have attached an HPT idle run log in case anyone wants to look at it.
If I need to, I will buy the corvette rears, they are cheaper than the truck sensors Truck ones are ac delco, the corvettes are denso.
Last edited by Suddog; 10-20-2010 at 03:18 AM.
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I only had a chance to log an Idle run last night. Today I will see what she does on the road. If interested, I can submit a log of that as well.
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Will Speed density work until I get my new o2's? I set the MAF to 0 and did a run log. LTFT on bank 2 were around +25 area...then stayed there until I opened up the throttle. Now they stay at +13 on bank 2 and -13 ish on bank one.
I thought SD mode would take the o2's out of the equation? Could my fuel trims be out of whack again?
I thought SD mode would take the o2's out of the equation? Could my fuel trims be out of whack again?
Last edited by Suddog; 10-21-2010 at 05:41 AM.