Hey guys, I have a 01 Gt convertible that pings like crazy if I don't use Super Unleaded (Exxon preferably) it pings under a load.anything else just driving under a small load like accelerating it pings lightly. now I have considered doing the water spray in the intake and seeing if it's carbon build up but after the next test I'm not so sure now. also considered some top engine cleaners as well. Now here's my another thing I did, my buddy let me borrow a Predator tuner just so I could do some data logging and I noticed that when running down the hi-way the timing is running anywhere from 38 to 48 deg. of timing even when it was pinging. it never retarded that much when it was pinging. Now I have some thoughts on this but I want the lists opinion on this problem and see if I'm going in the right direction here. Thanks Charles
- posted
17 years ago