CouzinX

Made a trip to Las Vegas last week, and about 400 miles into, felt the car kinda bog down. got it back home - check the mpg, and still made decent with 22 mph for 600 miles. but checked the codes and the following 31, 63 , 66. all three - tps, egr and maf,, - have possibly low voltage signals. is this coincidence or could all three's trouble be coming from a centralized electrical or computerized problem? or could one of the three cause issues for the other two? let me know. thanks


89 vert 5.0 - stock

89stanglx

I had a code 66 low voltage MAF. My problem was the stock alternator because i installed a electric fan and i dont think the stock alternator could keep up. about once a week it would run like crap and give me code 66, I would put the battery on a charger and it would be fine until about a week later, it did this about 5 times until i replaced the stock 70 amp with a 130 amp alternator. I havent had that problem since then about 3 months now.