Re: MAF reading lean and low flow amounts
Have you tried running it with the MAF on but the air filter off (or were you already?). Most MAF don't "sorta" fail, the either do or they don't. I have seen MAF codes as a result of oiled air filters, or in some cases tiny bad flowing filters...running it without the filter would obviously verify that in a second.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING 
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