Just figured I'd write about this / vent my experience today. Bought a rather brand new 04' Rx-8 GT recently with only 10,500 original miles. Awesome, only 10k, but when you do the math, you will figure out there has been a lot of sitting. I don't let it bother me too much, since I got it about a month ago I've changed all the fluids - oil, tranny, rear riff, etc., new tires, new K&N filter, and it's been driving excellent. The car has been pulling strong, starting hot with no issues, I've been happy.
Today I decided to get on it a bit with this douche in an Audi who would cut me off everything I went to pass someone else. Was rather neck to neck until I hit redline, and started to pull a bit. Once we got to the top of the hill at the end of the road, I noticed the smell of stinky catalytic converter, which I initially thought was his car from being redlined. Then I looked at my dash, and saw the blinking CEL.
Long story short, I got scared, pulled over, CEL went away, but the car smelled terrible (misfire likely caused fuel to be dumped in and through the exhaust / cat). Restarted car, no CEL, but the idle fluctuated then evened. Drove back to work, and got on it on a sideroad. No issues unless I went WOT to redline, then I felt the fuel-cut-like misfire at 6-7k rpm. Still no CEL light.
Went back to work (thankfully at a dealership) and grabbed the scanner. Threw one code, being the p0302 (cylinder 2 misfire). Asking around and did some research, and concluded it was one of 3 things - plugs, coils, wires. Started with the cheapest option being plugs, and thankfully it was not only quite easy to do, but also solved my problem.
Immediately the car started better. I still get some minor vibrations at idle, but I beat on it pretty thoroughly and noticed no issues, just linear power throughout. So amazingly, even though the car has only 10-11k miles, the plugs were totally shot (picture as reference). In time I will also upgrade the coils and wires.
Now my next issue is the white foamy **** I see on the dipstick every other time I pull it out...from what I heard this is semi-normal and I should give it a good long thorough drive to heat the condensation out of the oil (oil was changed recently).
Also threw in a pic of my car. Only things done beside basic maintaince were the Niche Misano wheels, 18x8 et 40 all around. Getting coilovers for Xmas, then plan on just doing drilled / slotted brakes all around, some spacers in the rear, and just keeping it clean and running :0
