Quote:
Originally Posted by littlevictories
did you do your harness yourself? might need to trace out the maf wires to the pins.
i did like Jay said when I was hunting down a ltft problem. tried a new maf from autozone it didnt fix it and they let me return it.
mine turned out to be bad injectors though.
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The MAF is not jumpy after I cleaned the MAF. It is stable during idle. However, I still get P0174 and P0171. Now, I am getting a p0116 code. I did do my own harness, and I did check the wires and they turned out okay. I drove it today to see what it does. I noticed the MAF would go from reading 10lb/g at 2300 rpms to 1.3lb/g still at same RPMs. I also noticed ignition timing go from 45 degrees, to 20 degrees at same 2300 RPMs. I also rev the engine to 3000 rpms, and the ignition timing went from 50 degrees to 34, 20, 40 degrees at same RPMs. I believe I saw the timing go as low as -45 during deceleration. I didn't pay much attention since I was driving, and I thought I must have read it wrong. I also drove the truck in 3rd gear to see if the shuffling between 40-50 mph would stop, and it did the same thing. I noticed the rpms would fluctuate from 1600 to 1800 rpms at same speed. I checked the tps and the MAF to see if it fluctuated when this happened and it did not. Also bank 1 seems to have a miss during the RPM range 1500-2000, well really anything above 1500.