Rough Idling/Pinging C5. HELP!
Turn the key on but don't star the engine. Remove the number 16 & 23 fuses from the underhood fuse box. Turn the key off. Replace the number 16 & 23 fuses. Start the car and let it run @ 175 degrees or warmer for 5 minutes. Shut down the engine for at least 30 seconds, then drive the car for about 30 miles at varying speeds. If you do this kind of low bugget mods you will feel a big difference in the seat of your pants, and ET's


