Car runs fine, but when i Dynoed the car the graph came out all screwed up. The power line went up and down. I was told by some friends that it could have something to do with the ignition system. So ill be changing the plugs, and wires, and maybe the coil too since is not that expensive. What else could be causing these problems. I also remember hooking the cars comp to a laptop to scan it, i had some knock too.

 

Might be cheap insurance to monitor fuel pressure with a gage taped to the windshield. Not like you have a bunch of things to look at while your on the dyno anyway.

 

Whats Up Bro? Hey bro you might wanna get a LT4KM. I bet the exhaust cut-out is the reason you are getting knock since the LT1KM is very sensitive. So I think if you get a LT4KM that should help you get rid of that knock.