Hi,
I am new to HP Tunners and I bassically purchased this software to be able to install efans on my 99 Chevy Silverado which I already did and everthing has been working great in addition to the AC pressure swich that made is work like the 2005+.
I have have repaced my knock sensors on my truck 3 times already with AC delco products and I did have deffective sensors which i've replaced. This 3rd time I did the replacements I still keep getting the same code and dont know what to do... I've already checked resistence thru the harness and all the way to the blue harness on the computer and the resistence is within the required range.
Any one else knows what could it be?