So TOday i changed my spark plug.I used NGK the one recommended on our Manual. Everything was fine until about 40 mins of driving. When am standing still the car jerks a little bit. So as am driving i can't feel it. When am driving above 40 mph CEL starts flashing. Can it be that one of the spark plugs is bad?

 

Check to make sure all sparkplug wire harnesses are connected.
That will cause the problem you are talking about.
If thats good check the gapping of the plugs.
Anything is possible. Take it to an Auto Zone to check error codes.
Could be a bad sparkplug. Where did you purchse them from?
Who installed them?

 

I purchased them from Advanced auto parts. But i think i did see a crack on the ceramic portion of one of the plugs. Can that be it?

 

take that one back out very carefully and look at it again.
It could have developed a bad coil- when you remove them to do the plugs- they are like lightbulbs- they just stop working- that will give muti misfire codes
All the wires are connected back up?
Did you follow the DIY on plugs on azinr?
Which plugs did you get- the book allows 2- many of us are on NGK Iridium IX
thats the newer better metal- NGK Platinum came stock on gen2, iridium is fine to use-

 

I used NGK Iridium IX- product code IZFR6K11

 

ok- correct plugs- thats a TL-S ?
Check the work most recently done first.
Remove engine cover- check the electrical plug-in at each coil, everything is tight- nothing looks different that when you looked at it before the plug change.
Remove that one plug you had doubt about- do that with the engine cold!!!
If plug looks bad- go exchange- if good- reinstall and drive to parts store
Ask them to check for codes and report back here with those

 

IS not a Type-S. I will bring it to the shop the job was done at. I will tell them to replace the plug which was cracked on the white ceramic part . Dammn i hope i make the meet today

 

ask the shop to check for codes- its more likely you have a coil failure than a defect spark plug. I would hope the tech looks at the plugs for obvious signs of damage.
The coils get jostled during removal and 1 can just suddenly quit. It happens to many ziners

Was this a shop that specializes in acuras?
I dont recall which model takes the 5 heat range plugs and which takes the 6
that could be a problem too- double check on another parts website for the number

 

Okay the codes were misfire code on several cylinder.

 

Okay saprk plugs was cracked on the ceramic part which is why made the car jerk when stopped, plug replaced during good now

 

yeah.... crack ceramic insulator would have been your issue