doubt it, my truck ran fine at the track 8.60's with nothing more than a pred canned tune and street tires with those lean codes. The amber hue drove me nuts though
02's are 45$ea at autozone, good luck with the passenger side front heater on stock manifolds. When I re- done my exhaust I relocated that one so I could get it off if it ever went bad.
I have a couple extra 02's left over from were I replaced mine due to the same problem, and found out that when 02's go bad the truck idles and runs like poo cause it would be in limp mode (that was not my problem)
Carb cleaner is cheaper than 02's and would take 2 minuites to diagnose.
As far as the IAT goes if its close to ambient when driving,its probably fine too (I think you can swap them). Datalog that before buying a new one.
All im sayin is....... do the free stuff first,I wasted alot of money replacing things that were not bad. And if its not bad it does nothing when you replace it.
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