KillA98Z

iTrader: (1)

i had gotten my car tuned by cartek but i could get the car complety tuned becuase of fuel pressure loss.anyway i need to go for inspection so put in 2 highflow cats.this morning wheni when to bring my car for inspection i drove about and block and the cars rpms droped from 1000 to 500 and on came ses light.scaned it and came up po102 mas low circut how do i fix this

KillA98Z

iTrader: (1)

anyone need help

brokenfly

plug your maf back in...the wire must of came loose...

KillA98Z

iTrader: (1)

it pluged in do u think it could be back should i try messing with the plug and reset computer

brokenfly

maybe it is a stored history code on the p102 from an earlier tuning session...clear it with the scanner you used again...
if it repeatedly comes back after clearing it,you have got maf issues,such as fail frequency set to zero in the tune and forgot to set it to no report the mil,no power,or a broken maf element...just a few guesses,but it has to due with the maf...

when you reset the pcm you will need to drive it around for a while(a few drive cycles)for the emissions ready monitors to reset...they will not be ready right after a pcm reset...

KillA98Z

iTrader: (1)

thanks i try that and see

2001NBMZ28

Just for the heck of it check the ENG SEN fuse for an open.

KillA98Z

iTrader: (1)

what one is it becuase the fuse box cover the fuse diagram is gone on my car.i test it for power at the conection and it has power.need help

2001NBMZ28

There's a diagram in the owners manual, mine might be different. If you're getting power at the harness probably not the fuse then. Reason I suggested it is because the MAF and 02s are on the same circuit.

Shallow Bay

iTrader: (3)

http://www.gearchatter.com/viewtopic8767.php

KillA98Z

iTrader: (1)

could oil from a new filter hurt it and cause this probelm im going to tryto claen with sensor cleaner and scan and clear code and see what happens