Spark Plug Issue

[alcapone72]

Hi every one i've been a member for a while now i've got an (is 200) and i find this website very helpfull. I never post anything before because i always get the ansawer from someone eleses post. Recently i fited 6 denso ik20 iridium spark plugs and a K&N air filter since then everytime i slowdown to about 20mph and accelerate the car starts misfiring to my knowledge these plugs should not need gaping but i'm no mechanic maybe i'm wrong. any help will be highly appreciated.

[scudney]

Hi,nothing wrong with the plugs,sounds like you might have a problem with one of your coil packs

[alcapone72]

Hi,nothing wrong with the plugs,sounds like you might have a problem with one of your coil packs

i've just put six denso coil packs on one month ago.

[scudney]

Hi,nothing wrong with the plugs,sounds like you might have a problem with one of your coil packs

i've just put six denso coil packs on one month ago.

Hi,now that you have mentioned that you had the coil packs changed too you might want to take it to a garage and have it checked out as you shouldnt have to adjust the gap on the plugs.

[alcapone72]

before i take it to a garage i'll put back the old ones on to see if stop misfire.

[scudney]

before i take it to a garage i'll put back the old ones on to see if stop misfire.

Hi,yes I would, great idea that way you would have a rough idea if its the new plugs or not

[alcapone72]

before i take it to a garage i'll put back the old ones on to see if stop misfire.

Hi,yes I would, great idea that way you would have a rough idea if its the new plugs or not

well i've put the old plugs back and everything is fine. well they were no really old but i was servicing the car and decided to change them it's (denso iridium sk20r11) which supposed to go for about 60k and they did about 40k so i think i'm gonna leave them on. for some strange reason the car don't like the ik20's.