Issues with my GLi (Video Content)

[DuB-P]

two codes that came up after the 2 videos where:

(both soft codes)
Random Miss fire: p0300
Coolant temp sensor: p0118

I have replaced in this order:

Bank 1 o2 Sensor
MAP Sensor
Idle Air Temp Sensor
MAF Sensor
Coolant Temp Sensor

I have looked everywhere for Vacuum leaks, and haven't found even the slightest leak

UPDATE: Changed Coolant Temp Sensor, no random misfire, but still have a rough idle, Idle gets better when the engine is at 190 degrees, but still rough.

[DuB-P]

anybody?

[turbo2205]

why haven't u replaced the cts? fyi: it's been known to be associated with random misfires.

[DuB-P]

why haven't u replaced the cts? fyi: it's been known to be associated with random misfires.

hmm, i didnt know that, I shall just do that real quick, and we can go from there.

[DuB-P]

Update:

Changed Coolant Temp Sensor, no random misfire, but still have a rough idle, Idle gets better when the engine is at 190 degrees, but still rough.

Any other Ideas

Could it be a D valve, I have a APR R1, and its about 3-4 years old....

[DuB-P]

Idle is a little better, but still not where it needs to be, and still get a random miss fire above 19lbs of boost...... thats the only code i get.