TCC locking issue
09-15-2018, 09:14 PM
#1
TCC locking issue
Hey guys. My 85 burb with a 6.0 and 4l60e will not lock the converter by it self. With HPTuners i can manually lock it when driving just fine. It just will not lock by it self. My PSI harness did not come with a prndl switch connection. I do not know if it is needed or not. I am not sure what is going on. Any one have any ideas? Thanks. Tune file attached.
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