Originally posted by BLACK6PACK
Take a look at all the vacuume hoses and see if they are good. Make sure the one to the FPR is good, as well as the one to the charcoal cannister.
Look and see if the DS header is cracked. I don't exactly understand this one but people say they get knock with a header crack.
How old is your fuel filter? Its a $5 part and takes about 10 minutes to change. It should be changed about 1 time a year.
I see that you have a new fuel pump, you need to check the voltage at the pump to make sure your getting the voltage you need. I had a hotwire kit, and started getting the same symptoms as you. It ended up the my hotwire got pinched, but only when I got on it and the body rocked back and pinched it.
Its probably not the converter bolts, but it does happen.
Look and see if your down pipe is hitting anything.
You also might want to check and see if your motor mount is cracked. Mine cracked allowing things to bang around and cause false knock. $25 later and that was fixed.
Do your visual inspections first. If you don't see anything dump in a can of xylene. If it goes away, it could have just been a bad tank of gas.
Don't get on it too much until you have solved this. 5* at 16 lbs of boost isn't goint to blow it, but that is the point at which you want to get out of it.
