I did a tune for a guy in $61 for a 350 L05 and manual trans based off the anlu. Im having him back out B10 because I think this is giving him a high idle. The a/c off idle speed is set at 550 rpm. I dont see that this code has a idle speed vs coolant temp or a hack found for a p/n adder. His rpm is from 1000 to 1200 so Im thinking its just a case of making sure the wire in the ecm b10 is not grounded. He is also getting a code 24 in park even so Im thinking he has a bad ecm as well.