Zeus04

My 04 has been running fine and performs great until 2nd nitrous pass. Currently using the zex kit on 100 shot with a retard timing of -2 degrees. I have a misfire on cylinder 3, and thought I burnt up the spark plugs so I bought the ngk 1 degree colder plugs and same issue... No oil in cylinder 3 and if you unplug the coil pack you can definitely hear the miss... It's got power loss and hesitates at wot no matter what rpm you start out. Things I have done: cleaned maf, changed plugs all 6, checked for leaks around intake, and made sure tps was reading properly. Any help would be greatly appreciated.. I don't want to hear the compression is bad as that would be the worst case scenario. Current mods are intake, full exhaust, nitrous.

Conway_160

iTrader: (1)

Do a compression check, make sure you didn't fry your rings.

BluestreamDE

I'm no nitrous guru, but I have read that you need to richen your WOT AFR tables at least .5 or you will run lean once nitrous is engaged and spraying. I see you reduced timing but did you fix the fuel portion of the tune?

tcode

iTrader: (7)

Burnt exhaust valve is one possibility too.

BakaN20

iTrader: (26)

Were you running 1 step colder plugs before this happened or stock plugs? Do you have an afr gauge? What was the afrs when you were spraying. What is your activation window?

CK_32

iTrader: (1)

I'm going to assume this was a dry shot? Not a wet?

iideadeyeii

iTrader: (6)

Why haven't you checked compression. Right after inspecting the plug this is the second thing you should have done!!!

Conway_160

iTrader: (1)

Maybe he did check it after I sugested it and found he wrecked his motor, now he's in a corner crying.

CK_32

iTrader: (1)

RIP another VQ lol

Zeus04

No engine is fine... sorry I've been dealing with family issues but I did get it fixed the coil was bad on 3 it had a slight hole in the rubber portion of it and causing to fire against the spark plug tube. I need to get it tuned on spray I don' know the afrs. And this is a wet shot.

Zeus04

this is a link to the video of me spraying it against a 98 gt on a dry 125 shot with 28" slicks got him by 3 cars at the end. I'm on 275 radials

Zeus04