[SpeedyPat]

Got a turbo k20z1 with 9.0 to 1 compression and i have a misfire like a mother. I had a blown headgasket replaced that. NOw it still misses like a mother. It runs but runs like crap. The plugs keep fouling out within like 2 minutes like the injectors are stuck open or somthing stupid anyone got any ideas.

 

[jon v]

what kind of gas are you using?

 

[kb58]

What is the AFR? Black plugs = way rich but check it. Leakdown test might also be in order to confirm there's nothing going on with the rings or valves.

 

[JordoKAP]

Also how does the tune look?? is the O2 sensor plugged in?

 

[SpeedyPat]

Tune is the same that it used to be and ran great. Now the A/F at idle is 14 but when you gas it it goes super lean off the scale. Fuel pump is brand new. Leakdown test shows 20% out of the rings which isn't good i know but it still shouldn't run like it is. And 93 octane gas