[GhostDakota]

o2's are in. Cats seemed okay by hitting on them. No broken honeycomb noise that I could ascertain.

Drove to my buddies. He is a mechanic for UPS. It was approx. a 35 minute drive. Car was fine for 3 minutes then went to misfire. It mainly misfires above 25 MPH, typically in the higher gears and higher RPMs. On the highway it's almost a constant misfire (CEL blinking) until I drop down below 25 MPH and then eventually it stops blinking, though I still feel the misfire.

Checked the passenger side cat - it's okay. Didn't get a chance to check driver side cat. We did check both cats with my g/f's infrared thermometer. Driver side was 475, passenger side 375. Between the front/back of the cats it was only approx. 40-60* max. Here's where things get odd though...

We figured we would test the injectors, coil packs, etc. While the car was running we pulled one injector (the wiring obviously) at a time. Each injector, when unplugged, caused the motor to drop and run worse than it already was. That was, until we got to cylinder 5. When we pulled the plug on cylinder 5, nothing happened. We swapped coil packs quick to see if it was related to the coil. The problem did not move.

We swapped the #5 injector to a Ford injector that was the same clip/setup, just to see what happened. Started up the car and my CEL turned off. (It's showing a P0420 for the o2, and a random cylinder misfire btw). The problem got worse. We put the stock injector back in to #5. CEL came back on.

Ohmed out the injectors. All were around 13.1, though on cylinder 5 we had a a reading of 14.2 and also 13.2.

I drove to Pep Boys just to get some Sea Foam for S&G's. Left my buddies, drove the 5 minutes there. Car drove like ****. Went inside, no Sea Foam, came out. Started the car and it drove perfect for about 5 minutes. Then back into crap. 10 more minutes and I was at Advance Auto. Went in, got Sea Foam, came back outside. Car drove great for 5 more minutes, then back to crap again.

Bad injector? Something internal? Something else?? I just sold my Jeep and it's too cold for the bike so I NEED to get this car up and running as it's my DD now 'til I pick up a new Jeep. Thanks...