What would cause my knock readings to all ob a sudden increase by about 10. when I first plugged in PFC I was getting neer higher than 60, now with the intercooler, adn a little while later I am getting mid 70's around 3k RPM. I can;t see how an intercooelr could do this.

What could cause and increase like this?

 

Do you live in cali and had to start using 91 octane instead of 92? Just a thought.

 

no, I am in Georgia with 93 octane, air/fuel ratio is hard to tell on patial throttle around there becasue of the air pump. on full throttle I am like .93 so plenty of fuel.

 

ever cleaned those injectors?fuel filter?

 

new filtre, but never cleaned the injectors, I am just kidna nervous to drive it. it has had iinjectro treament by the previous owner, but not in 15k miles. I'll am going to ttry it though.