MT....I don't have a fuel pressure guage or Vaccum guage so I'll try and borrow one this week. My scanner doesn't have an injector balance test but I did scan for injector faults and the reading was 112. Compression test came out good as follows
Cyl 1 161
Cyl 2 158
Cyl 3 160
Cyl 4 162
Cyl 5 157
Cyl 6 160
As far as the pressure goes the BARO is half the MAP and Atmosphere
Atmosphere = 14.74 psi (101.6 Kpa) today from NOAA
MAP (Engine off) = 14.1 psi (97.22 Kpa)
BARO (Scanner) = 6.9 psi (46.9 Kpa)
Where is the BARO reading coming from ?
Switched plugs and wire on Cyl 2 and 4 and ran seafoam through the vac line and gas tank. Took the truck for a spirited run and was able to accel past 3 thousand 3 times....on the way back I made it to 3900 and the SES light went off...scanned it and saw Cyl 2 - 787 MF, Cylinder 1 - 26 MF...code was P0302....better but not great.
Thanks
Mike