03 mach 1 ping

[whtstdhrse]

91 oct tune - pings at 1100 to 1500 rpm range - take tune out goes away . . . colder plugs - flushed block - replaced rad new . . . take tune out ping goes away . . . can't adjust timing in that rpm range . . . any ideas ?

[mikel]

please load the tune and then post the backup and last tune written files from the tunes folder so we can check it out.