Hi all i have a 96 primera wp11 2.0 td and it is salling and dropping revs to about 350rpm at times. When parked and you put your foot down then let it of the revs drop to far and bounch back up or stall it allso stalls when i'm pulling up at lights. I have flash it and it's come up with code 12 the maf sensor. So got a new one but this made the problem worse, aswell as stalling it lost lots of power like i was towing a truck behind me.

Anyone got any ideas

 

try to put back to old ones... maybe the battery cause the problem.