Hello,
installed Kooks long tubes and do my first little tune adding 20% on transport delay and put rear o2 off.
Now i have GT500 surging with SFTF up to 66.4% not understanding what is going wrong, all the rest is stock.
Thanks helping to understand.
Regards.
;o)
Sorry i'm at work so I dont have my VCM Suite. Those cars also don't have wide bands like the 2011+ cars so it takes a little for the front narrow bands to learn fueling. also just to make sure when you multiplied by 20% you entered 1.20 in the box and not .20 correct?
Hello, correct x1.2 as you can check on files provided.
THANK YOU taking a look.
TAKE CARE.
Best Regards.
;o)
could be something wrong with o2 sensors
Hello, O2 are the same but added extensions for long tubes, i'll buy an other set of extension to eliminate this variable.
THANK YOU taking a look.
TAKE CARE.
Best Regards.
;o)
never trust extensions
your issue is wiring for sure
adding headers in most cases you will need to pull some fuel at low engine loads
Hello,
for information, installed new extension and same issues.
Odd.
TAKE CARE.
Regards.
;o)
Attachment 104950
if the car only has LT headers
i would install a wideband
Hello,
THANK YOU taking time to take a look.
STOCK except Kooks long tubes & WB already added ( 2007 GT500 NBU5 FBMH356 LT_REARO2_OFF_Start_Idle_04.hpl ) having these odd things.
I'll take a look on your Rev & test as i can.
TAKE CARE.
Regards.
;o)
Hello,
attached log from SultanHassanMasTuning test tune.
TAKE CARE.
Regards.
;o)
On a GT500 you should be able to remove the plastic clips holding the O2 wires against the trans to give enough length. This way they can be plugged in directly and avoid harness extension issues.