I have a 2000 v6 with approximately 80,000 miles on it. The car will not stop pinging. I replaced the fuel filter, cleaned the injectors (and throttle body) put a K & N air filter it it, and even took it to Firestone for one of thier "stop pinging treatments--I believe this is to clean out any backed up carbons in the cats"--none of this has worked.
Is there anything else I can do? replace MAF? I also strated using higher octane gas--same result. Thanks in advance.