05 pontiac Grand Prix
03-17-2006, 11:04 PM
#1
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05 pontiac Grand Prix Gotta question.
My girlfriend has an 05 pontiac Grand Prix 3.8L. (not a GTP) Anyway she has been getting terrible gas mileage (17-18 avg). Sticker says around 30mpg highway.
Anyway, I decided to log the runs with my Hp tuners and her car is seeing up to 9 degrees of knock at wot and 5ish during partial throttle. Is this normal? I would think not but I have no experience or knowledge about the 3.8L motor.
Thanks,
Morgan
Here is the log.
05 grand prix log
My girlfriend has an 05 pontiac Grand Prix 3.8L. (not a GTP) Anyway she has been getting terrible gas mileage (17-18 avg). Sticker says around 30mpg highway.
Anyway, I decided to log the runs with my Hp tuners and her car is seeing up to 9 degrees of knock at wot and 5ish during partial throttle. Is this normal? I would think not but I have no experience or knowledge about the 3.8L motor.
Thanks,
Morgan
Here is the log.
05 grand prix log
03-18-2006, 08:12 AM
#3
on my 00 gtp there is no b2 sensors....its bank 1 sensor one and bank 1 sensor 2...that is pre & post cat...yes only 2 sensors...I would assume this car is of a very similar setup...so I wouldnt be concerned with an 02 reading 0 if its not there 
I did notice your injectors are maxing out over 5000 rpms but other then that nothing stands out to me.
I did notice your injectors are maxing out over 5000 rpms but other then that nothing stands out to me.