Spark plugs replaced and gapped about 6 months ago. has been doing to stutter before and after new plugs. There is no pending or verified dtc's. Issue only occurs when the AC is on. Most time a bad injector or plug will cause a misfire and I am not reading any misfires. Also, no I did take the front end apart several times and did not find where the bolt goes. Even went to a few junk yards and took those apart to and still didn't see where it goes.