just had catilac converter changed it was pluged up now it is shifting hard help on 2007 Pontiac G6

is it a sensor

by in Hudson, OH on August 27, 2013
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2 answers
ANSWER by , August 28, 2013
Could it be due to more power from the engine, now that it can exhale?
ANSWER by , August 28, 2013
IT COULD TAKE AWHILE FOR MODULES TO READ THE NEW ARE FLOW,IF THE CATT WAS PLUGGED FOR A LONG TIME