If you shut the car off immediately after it starting knocking, there is a good chance that you didn't do any significant damage. If you drove it for very long, you may have hurt something.
First thing I'd do is uninstall the BullyDog. If the knocking/pinging stops, then you have found the problem. You can then get a proper tune for the BD or switch to one of the other tuning packages. Either way, you'll need to have someone that is familiar with Zs to do the tuning.
If the knocking is still present after removing the BD, then I'd look at the fuel (bad gas).
An OBD/CAN scan tool is a great diagnostic tool. Buy/rent/borrow one and see what the car thinks is wrong.
|