Working on a 2002 5.3. transplanted into a k5 blazer with manual transmission. PCM is service #09354896
Engine runs decent but has loss of power and sounds like a misfire. (Also misfire counter isnt working). LTFT is 18-25 on bank 1 and -3 to +3 on bank 2. Alot of testing has lead me to hooking up a noid light to the injector connector and using vcm scanner injector on/off found that disabling injector 1 actually disabled injector 8. 3 disabled 1, 5 disabled 3, 7 disabled 6, 2 disabled 5, 4 disabled 2, 6 disabled 4, and 8 disabled 7. I checked injector wiring to the PCM and its in the correct terminals to the PCM. Ive seen where others have ran across this on here but no one has posted the correction if there was one. Any ideas anyone? Ive switched the firing order in the tune but as others have stated that doesnt change what im trying to do.