I have changed to the proper plugs that came with this modification but I didn't change the plugs until the second day. Soon after, I don't remember the number of day, I have 'Service Engine Soon' appearing on the dash. I am guessing this as a cause to why so soon after having the 17% pulley installed that I am having the 'SES'. Parts store scan revealed a P0340.

 

No, you don't need to reset anything. Scan the car, see what codes triggered the check engine light.

 

Oreilly's scan tool not powerful enough to give more details. Will have to wait until next week to have an indi use their scanning tool to give me more information so know which wheel sensor is bad and what exactly is P0340.

 

Do a google search. I did a quick one...sounds like it could be a crank or cam sensor error?

 

I am hoping the scan tool will tell me which one.