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View Full Version : Truck not shifting at comanded rpm?



lstruck
September 21st, 2012, 05:56 AM
I've set it to shift a 6700 rpm and it's shifting at 6000? any thoughts...tune looks right to me and log say's it's shifting early.1392813927

gmperformancecentre
September 21st, 2012, 12:33 PM
Try changing the following D0940 , D0941 , D0942 , D0945 , D0946 and D0947 to 6700rpm

lstruck
September 21st, 2012, 01:47 PM
We'll I just made kph match rpm shift points -2 kph and that worked for me thanks.

lstruck
September 21st, 2012, 02:52 PM
but why do my abs light and ER brake lights come on when going wot? then rest after I restart?

joecar
September 21st, 2012, 08:17 PM
What are the ABS DTC's...?

lstruck
September 23rd, 2012, 10:28 AM
C0237