hey .just installed the clutch today .was doin the break in and sudenly massive sputring starts in evry gear al the time .gets ok after 2or 3 mins for a while than again starts to sputter .when the car sputter the afr goes to 17 and as soon as it gets ok the afr come back in 12s and 13s .plz help me solve my issue .wat things shud i check .....

 

bump

 

what is your spark plug gap?

check your plugs
do a boost leak test

 

I don't think a boost leak will cause this unless an entire pipe is off. Sounds like the maf isn't connected but he says the problem goes away for a couple of minutes. Check to make sure all your sensors are hooked up properly. Are you throwing any codes? This is going to be hard to figure out without physically being there. Are the problems all under WOT? We need more information.

 

no its not at wot .its constant .il check the plugs .i dont see any codes .

 

Does this only happen under load or will it do it while it is idleing? Your AFR shows lean when it misses and then returns. AFR may be lean or it is getting so rich your misfiring which will do the same. Check every connection on your MAF,intercooler piping from the turbo to the throttle body. Unplug the battery for a few minutes. Try again. If persists give us all more info....
Todd

 

It's not your plugs. You can rule that out. You can drive normal on bad plugs. I doubt all four plugs will go out at the same time and even three working plugs will run semi normal. Check your maf first.

 

your plugs,i had the same issue a month ago, i ate up a plug in the fourth cylinder 3 times in a row cause i was running lean now im having to get the motor rebuilt cause of bad detonation

 

problem solved ... Hks twin power gone sugest me any other gud ignition system ,but shudnt be too expensive .

 

i could not run high boost on hks twin power...now am using buschur.. it works fine 37 psi !!