Hello, brand new here. Scanned across alot of stuff here and joined. Read a post from a member back in 2/9/07 same problem. (SLEEPERFAN) dont know how to contact this person. engine ping,s on a grade sorun high test gas. It helps but how to resolve the timing? I havent had the time to through a light on it &to see how advanced its running,but what kind a scan toolwould be able toreprogram.