OBD2 LT1 Edit Probs
09-22-2004, 11:12 AM
#1
TECH Enthusiast
Thread Starter
iTrader: (8)
Join Date: Oct 2002
Location: Fort Lauderdale
Posts: 705
Likes: 0
Received 0 Likes
on
0 Posts
OBD2 LT1 Edit Probs Friend of mine has LT1 Edit for OBD2 for his 97 TA and he is trying to get his WOT AFR scaled correctly, but the AFR is always around 9.6-9.8 no matter what he changes in the PE vs RPM % Change table or the AFR vs Temp vs Load table.
He is using the LM1 Wideband so he knows the AFR is corrct. Under closed loop low and part throttle, the AFR keeps itself around 14.7, but when he goes WOT, 9.7AFR?????????????
He even changed the PE vs RPM table to -25%
I am guessing the PCM is defaulting to some limp mode table or something...any ideas on how to cure this?
BTW this is a turbo car with a cam, everything else is stock.
THanks
He is using the LM1 Wideband so he knows the AFR is corrct. Under closed loop low and part throttle, the AFR keeps itself around 14.7, but when he goes WOT, 9.7AFR?????????????
He even changed the PE vs RPM table to -25%
I am guessing the PCM is defaulting to some limp mode table or something...any ideas on how to cure this?
BTW this is a turbo car with a cam, everything else is stock.
THanks
09-22-2004, 12:50 PM
#2
TECH Enthusiast
Thread Starter
iTrader: (8)
Join Date: Oct 2002
Location: Fort Lauderdale
Posts: 705
Likes: 0
Received 0 Likes
on
0 Posts
Just found out his right 02 sensor is not working properly, but that wouldnt effect Open Loop WOT right? Or might it cause a limp mode reference???
09-22-2004, 01:03 PM
#3
On The Tree
Join Date: Sep 2004
Posts: 117
Likes: 0
Received 0 Likes
on
0 Posts
I dont think it should... i'm pretty sure those are fully ignored once ure WOT... if they werent ignored, i woulda had the same problem without the turbo, and i was getting a decent AF on that (low-mid 11s NA)
