RedM0nster

I am having similar issues with my 05 LGT Sedan, she has 167k miles on her.. I just read through this entire thread, and I have something that is a little different as far as when the car misfires. I have a scanGauge 2 installed in my car’s OBDII port, so I can see near-real-time information. Like a lot of the thread entries my misfire issue happens more often during cold weather. I have a very consistent P0302 error, no other cylinders have caused a CEL. It will throw the code at idle when cold and I can watch the RPM’s drop below 550rpm. It usually happens when I am braking to a stop. (the misfire and the idle going down so low at a stop is the scenario that seems a bit different than the rest of the thread) I have swapped Coil packs/injectors Cleaned MAF, Cleaned Injector etc. I have replaced all of my plugs with NGK Iridium plugs (OEM) I had an oil starvation issue with my turbo, and had that replaced, while it was in the shop, I asked the to do a leak down and compression test, although #2 was lower than the rest, it was still within 10% of the rest. They ran a scope down the cylinder and looked at the top of the valves and they were clean and showed no oil blow-by, also when I changed my plugs, I didn’t see any oil on them. With all of the troubleshooting I have done, my guess would be that maybe a valve guide has slipped? Wouldn’t that cause some white smoke from the exhaust, and oil consumption? I change my oil every 2500 miles with full synthetic, and the car isn’t really using any oil between changes. I spent $4500 on the Turbo replacement and the fix for 2 small oil leaks, I really don’t want to put a ton more money into the car. Thoughts?