Fellows:
I have a 2000 quest with 190k currently. Couple days ago, I started getting the misfire codes. I replaced all of then plugs with Denso plugs, wires and even distributor. Still same misfire are higher RPMs. Right now, I'm out of ideas. I'm pretty sure that there are non vacuum leaks, but can't confirm. I've ran seafoam in it already. Still no luck. Anyone else had any problems or suggestions?
