Alright so heres my dilemma.
I just installed my Stage 2 aFe CAI. I have custom tunes but they were set up for the GOTTS mod, I just put an order through today to get them re-tuned. After make a couple mile drive in the truck, I get back to the house turn it off, wait like 45 min and go to take another drive and I noticed my check engine light is on, used my Gryphon to check and says Bank 1 and 2 system too lean. I am freaking out now because I don't want to drive my truck with it saying that. My new tunes are on order but should I not drive my truck until I get them in? I was also wondering, what if these tunes don't help and then I have a too lean truck, I am out more money than ever expected?
I have a 2004 (new body style) 5.4 3v btw.
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