08-19-2006, 10:03 AM
when i had a cut up egr tube on my car, the exhaust leak made it sound like the car was pinging, but it was really just noise from the engine that i wouldn't normally hear.. perhaps you are experiencing something similar?
also, when you are pinging at low rpm, are you putting the engine under a lot of load, like say.. going up a steep hill slowly in a high gear?
also, when you are pinging at low rpm, are you putting the engine under a lot of load, like say.. going up a steep hill slowly in a high gear?