Stock '02 ping on 87, 89 seemed to fix it.
Hey guys, so the last day or so my 02 seems to have developed a pretty serious ping at more than 1/2 throttle between the 2k-3k rpm range. I first started noticed it yesterday when the weather finally decided to warm up a bit. I was running a full tank of 87. After lots and lots of driving yesterday up and down the garden state parkway, I managed to run the tank to E this morning. Well about an hour ago I filled up with 89, and upon leaving the gas station I still noticed the slight ping, after about 5-10 minutes of driving it seems to have next to completly dissapeared 👍. Now could this have something to do with the warm weather and the so called "winter" and "summer" gas? Idk if I should stick with 89 for now on and say screw it, or if I should begin to track down what's causing it to ping on 87. Spark plugs less than 20k, maf cleaned recently, air filter cleaned 6 months ago, fuel filter changed less than 20k. and I am on the STOCK TUNE.
2002 5spd GT
Feb 2013 Mustang of the Month