So within the last month something has occurred and I figured its worth looking into, and this time Service light came on.

While im driving and the cruise control is set at 55mph out of no where in the middle of the drive the engine either miss fires or knocks just once. Now im not exactly sure what constitutes a knock, that might be to serious of a term im just not sure exactly the difference feel free to educate me on that one. Anyways it does that one single knock and then the RPM gauges just dies. Car runs fine with no issues after that and then when I shut it off and start it back up RPM gauge is back and car runs fine.

Like I said its done this twice within a one month period not sure what to make of it? Replaced the MAF IIRC spark plugs and wires recently. Any Ideas?

And since this has come up im inspired to throw some money at her so wanted to see if you guys know a good write up you used for sticking a cone on the intake, dont mind doin a little fab work and im creative just want to build it myself and not pay out the butt for it.