po102 code help
po102 code help 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
Launching!
Joined: Oct 2006
Posts: 202
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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...
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...
Last edited by brokenfly; Aug 21, 2007 at 12:51 PM.
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TECH Senior Member
Joined: Dec 2001
Posts: 5,399
Likes: 3
From: Jacksonville, FL
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.
