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zraffz · 07-29-2011, 03:22 PM

My car was missing up high in the RPMs and was gutless down low so I did a full tune up. I am 99.9% sure I set the rotor back to the right position but I didn't check to line up the slots on the opti and dowel. All my wires are correctly in place.

I was scratching my head and I just decided to take a look at my MAF. It is descreened, ported, and looks damaged. Maybe when I took it off to change the opti I damaged it?

Would a bad MAF cause the car to crank for about 5 seconds before turning over, have a stumble down low and backfire out the throttle body? When I disconnected the MAF it fired right up, still had that bottom end stumble but when it gets higher in the RPMs it appears to run smooth.

07-29-2011, 03:22 PM	#1
zraffz Join Date: Feb 2010 Location: Stillwater Posts: 822 iTrader: (2)	Replaced Opti... now bigger issue. My car was missing up high in the RPMs and was gutless down low so I did a full tune up. I am 99.9% sure I set the rotor back to the right position but I didn't check to line up the slots on the opti and dowel. All my wires are correctly in place. I was scratching my head and I just decided to take a look at my MAF. It is descreened, ported, and looks damaged. Maybe when I took it off to change the opti I damaged it? Would a bad MAF cause the car to crank for about 5 seconds before turning over, have a stumble down low and backfire out the throttle body? When I disconnected the MAF it fired right up, still had that bottom end stumble but when it gets higher in the RPMs it appears to run smooth.