testing for faulty injector
 

Im still trying to find the cause of my miss and hesitation. I've changed all ignition hardware wires included. To see if I have a bad injector, I purchased a laser thermometer and tested the heat coming off each header pipe. I found the # 1 to read about 100 degs higher than the others. The fluctuation is greater too. Could this be the bad injector? Has anyone else perform this test with successs? Thanks!

Why screw around? Send them to:
www.witchhunter.com

I tested mine exactly how you are describing. I sent all 6 to Marren Fuel Injection to trade them for 6 matched injectors. The temps between the cylinders closed up to 25 degrees difference at idle.

how much for exchanged injectors?

Owned 2 3.3 turbos and both had shot injectors,,new set costs around £200-£250 gbp here in the uk,,which is around $400-$500 dollars,,personally with my experiences i would go ahead in replace them if you have the spare cash ,,then you know you have all brand new parts in there..if not defo remove them and check/clean!

I agree Stup! Thats what I will do. I changed 2 and no change. I guess I may have more than one thats bad.
This has been frustrating. I was hoping to find the one but to no avail.