I bought a can of ref. at Advanced Auto Parts because it had a pressure gauge and when I went to shoot it in, it built up pressure and then it all at once dropped. I have tried using the control unit to get the DTC's and I followed the steps shown on the website, but it wont display those readings. Someone please help me... I hope something isn't broke or anything... and I really haven't a clue where to start looking and right now I can't spare the extra money to make a trip to the dealer.


Thanks, Timmy