Quote:
Originally Posted by TinCanSailor
Hit them with some MAF cleaner if you can. They work off of heat so everything that passes over the hot element tends to get baked on. Knowing the k&n's are oil impregnated there is a good chance it is just fouled. if the air intake is tight and the maf's are clean try data logging if you can to see if you can catch the misfire.
Did you change the gap on the plugs when you replaced them?
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The gap on the plugs was stock gap before i replace them and after , the maf is cleaned up but still the car feels like there is no boost , and cut power , if i drive slow below 3-4k rpm the car feels normal , there is no codes now ....