General Misfire at WOT and cold out?

[RockSolidGST]

Hey guys , If its super cold outside ( 30-40 Degree's ) im getting a miss fire at WOT , I went for a ride to day , mid to high 50's , No misfire

I might answer my own question here. But could it be do to that cold air is denser? So the spark is failing at high boost since im on stock ignition....Just a thought.

Anyone else have any ideas?

 

[DSMunknown]

Hey guys , If its super cold outside ( 30-40 Degree's ) im getting a miss fire at WOT , I went for a ride to day , mid to high 50's , No misfire

I might answer my own question here. But could it be do to that cold air is denser? So the spark is failing at high boost since im on stock ignition....Just a thought.

Anyone else have any ideas?

Perhaps you should look here first:




http://www.dsmtuners.com/forums/showthread.php?t=246253

 

[RockSolidGST]

Yeah but , it ONLY happens , when its really cold out , Thats a little diffrent , car tuned fine , Boost leak tested fine , Runs fine when its cold. Just has like 3-4 miss's if you do a 3rd gear pull when its COLD. I have my NGK's gapped at .26 i believe , ill try bumping them up to .28-.30 see if that solves the problem i guess

 

[eclipsegsx1736]

How much boost are you running, and what type of NGK plug? Also, are the misfires very small or large (causes the car to barely stutter, or buck a lot?) When I turned up the boost to around 25, I didn't gap the plugs down enough and was blowing out the spark at night (more boost), which caused several small misfires. I moved the gap from .028 down to .026 and it went away.

 

[RockSolidGST]

When I turned up the boost to around 25, I didn't gap the plugs down enough and was blowing out the spark at night (more boost), which caused several small misfires. I moved the gap from .028 down to .026 and it went away.

Im running NGK 7ES's , And its not bucking hard , its just kind of like a sudeen pop. Should i try gappig the up or down