major knock problems

[transtlye]

Well started my car this morning and it started kind of funny. Idled really low for how cold it was it was at about 1000rpm usually 1200-1300. whatever so i drove to school and it was extremly slow. It wouldnt even full boost. I did not push it that hard though I didnt want do screw anything up. Got to school and looked it over could see any manifold cracks or boost leaks that were obvius. I did do a boost leak test two days ago and found a tiny leak at the j pipe. on the way home i was looking at mmcd program and it said i was getting crazy knock. Like 43 count at any percent throttel. I pulled my timing apart last week to make sure it was good and it was fine. Tensioned the belt correctly and threw it all back together. After that it drove the same. Got new plugs, wires, coil pack. no change.

- i also have not tuned the car yet b/c i had so many problems to deal with when i bought it. Set at zero across the board.
- the cars idle and free reving is rough like a miss. No cel codes( although my maf signol for mmcd does not show up for 10-20 seconds when i start the car.
- Knock sensor looks good and shiny with no crud on the back. (never replaced though since i bought the car about a year ago).

Mods:
-560cc injectors
-s-afc 2
-255lb ful pump
-afpr
-2.4L strocker rebuild
-2g maf
-ss manifold(no cracks)
-stock exhaust w/ no cat
-evo fmic

 

[transtlye]

so i have checked the wastegate to see if it closed all the way and it does. Also i took out my plugs and shined a light down there to see if i could see a bunch of carbon build up and they still look clean(at least from what i could see. any other options you guyes could think of would be great. Maybe my knock sensor is bad. is there an ohm test for it?