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Posts posted by Khattar


    997.1 GT3


    At start-up bank 1 is at -15% and bank 2 at -25% (i assume this is open loop)

    Subsequently and while driving for a while both LT and ST on bank 2 are stuck at zero;

    While bank1 would be fluctuating in the -10% range for LT + ST combined.


    No error code or check engine but trims are either stuck at zero or bank2 will be very negative (almost -25%)

    This is my first GT3 and i have been learning the car everyday

    It behaves very different from my 997 C4S but seems to be the character of these cars

    I found alot of initially unnerving features from RMS leaks to daily morning rattles of death, but all has become familiar to me.


    However -25% fuel trim and then stuck at zero on only one bank does seem very odd !


    Would greatly appreciate any other experiences with the GT3  and most importantly what do you consider to be normal fuel trims ?


     trim reading is of a bluetooth OBDII reader connected to my phone


    Thanks all! 



  2. Hello


    my GT3 7.1 just code a major service including all drive train, engine to be removed an re-installed


    Everything runs normally for a while and then i get intermittently the check engine light and simultaneous codes 

    p0638 throttle actuator control

    p2102 throttle control motor


    Codes now disappear and reappear and on my obdII reader i can see fuel short term fuel trim on both bank 1 and bank 2 at -25% on idle (after code rest)


    if, any other opinion as to what is causing it and recommendation on how to fix please let me know




  3. Hi Loren and All


    I have similar codes on 2007 GT3 and would be best  to post on same thread







    Notice all on the codes  misfire on the same bank 

    I also sometimes smell strong fuel from exhaust after driving for around an hour hence i suspect car has been running rich.


    only today, i had two occurrences of check engine flashing for around 15 seconds and then disappeared


    Now i have no active check engine dashboard


    could you guide me on where  to  start looking?




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