honda vigor 1990 , one cylinder does not work. it happened a few days ago and i felt that the car became trembling a little bit , I pulled THIS spark plug connection out and engine just nothing changed, but when i pulled any one of others, idle became much lower, i checked the spark, 4 of them were perfect and just this one was in white colour. What happens to this? Is it a engine problem? please help, thanks!

 

yes there's a problem..take it to a shop ASAP.

 

indeed....

 

compression test and check spark

take her in

 

thanks

I will till i find the reason

 

yes i have checked the spark and changed a new one, but nothing happened

 

If my car has some problems with engine, i think it must blow smog but my one just nothing but steam.