I have a 98 3.0 CL. I just changed the spark plugs and the check engine light came on. This is the plug I used IRIDIUM IX NGK ZFR5FIX-11. I tried to search for the problem but came up empty handed. I noticed that its idling a bit higher and a little white smoke comes out of the muffler. Car has been perfect until now. Any help would be greatly appreciated thanks.

 

Hmph. What's the mileage report, soldier? Any other symptoms?

 

maybe you bent an electrode droping the plug into the tube and its taken to misfiring....... ive seen it before, and ill admit it happened to me when i put some in for my friends PLymouth, but no CEL came on.... im running the NGK Iridiun IX BKR7EIX-11 and theyre running fine for my 2.2, im sure youll be happy with um... assuming they arent your problem

 

Well I cleaned out the cap and rotor before I left for work. I got in the car and the damn light was off. Maybe they just need to be changed as well. I have those ordered already but the plugs are what came first. Thanks for the replies not sure why it did that but o well it's fine now. Milage is at 111,xxxx just got it at 110,xxx though.

 

did u reset your ecu? remove the bat for 10 mins and reconnect

 

Gap the plugs correctly?

 

I gapped the plugs to .44 which I believe is correct. I didn't have to reset the ecu, the check engine just went off by it self eventually. It's been fine ever since. Going to change the cap and rotor today, so I'll see if it does anything like that again.

 

You dont gap iridium plugs. dont try either or ull wind up buying more plugs. check your wires and firing order. i bet your problem is there

 

Didn't see that they were iridium.

 

Well i used the gap tool on them but thank god i didn't break the little tip on them. Guess I wont be trying to gap those again