Hello to all, just joined the forum. I have an 08 GXP and its the first ls4 powered car ive owned so far.
I have owned other ls powered cars and trucks but first time ive run across DOD/AFM. So as soon as i bought car
it ran fine with the DOD working as it should switching between 8 and 4 cylinder modes. I decided to
disconnect the oil pressure sensor under throttle to disable DOD temporarily and it worked great never went into 4 cylinder mode.
I drove car this way for two days no issues and one day i drove up a parking ramp and it immediately switched to V4 mode
No more 8 cylinder functionality. Codes that I am getting are p0102 maf low voltage, p3401 p3425 p3441 p3449 basically cylinders
1,4,6,7 are deactivated no other codes present. Changed the maf with no difference in change. It starts runs and drives in V4 with no issues. Runs great in 4 cylinder mode.
Could this be maf wiring, ecm, I have no idea where to start, any hints would be very much appreciated, a plus is the fuel economy but its very dangerous in traffic, slow and all.
