Well i got a spark knock going on under the hood and was wondering how to eliminate the problem. I put high test gas in and also octane boosters! I spark plugs gap are good. and just changed my fuel filter like 2 weeks ago.

 

999% of the time its caused by bad gas

 

????????? i put high test in w 2 octane boosters??

 

opps hmm run that tank out and try a different station other then that idk

 

lol ill keep looking around....

 

from my experience high octane fuels can sometimes make spark nock...try good ol 87 octane and i bet itll go away

 

check your air filter, not trying to make you feel stupid, but that will have affect on it, make sure your MAF is clean, the egr valve could be malfunctioning, or you could have a vacuum leak

Edit: You also need to check your fuel pressure... Your pump could be on its way out and not supplying the correct amount of fuel.

 

^ good call, its always the stupid simple things that I never check and when I do...well you can guess

 

haha