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alright, well its not a lean or rich misfire probably. post up the logs, maybe someone can give some more insight into whats causing the misfire. if you make a separate thread link it here so i can take a look at your logs too.

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i retract my previous statement it more around 11 -10 a/f d

eh, 10 to 11:1 is rich, but not soo rich it should cause misfires. hell my 7afe hits those kinds of AFR's stock NA running full tilt in the upper rpms.

you werent logging timing as well?

This post has been edited by Bitter: Mar 17, 2008 - 9:49 PM

i will take another log tomorrow. the timing on the log dosent seem to be working becuase it showing all negative values -80 to -100+ during that boost run


This post has been edited by blckcelica95: Mar 17, 2008 - 10:09 PM

Here's some ideas...leaky ecu?? Improper A/F (do some 3rd gear pulls at the dyno...see what's going on). Are you using a reputable wideband 02 sensor for the tuning or just stock for your readings? What about a boost leak test?? You should probably go to a pro shop and have them check your oil pressure at the cyl-head and see what it's running at when under mid-high throttle.

This post has been edited by 6G96GT: Mar 20, 2008 - 8:28 PM

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i found the problem , belevie it or not , it was my plug wires changed them out and car runs like a champ.

that'll do it. under boost you need ALL of the spark power you're making to jump that gap.