So I have replaced injectors, stc fitting, standpipes, dummy plugs, ipr, and icp sensor, and batteries. I had some issues throughout this repair, but finally she fired. Starts fine, hot or cold. Still seems to have a slight shuttter at part throttle. Could it still have air after 20 mile test drive? Also, still set light one time for icp circuit low. Don't have the scanner right now to monitor pressure during drive. Could air be causing this? 2006 6.0, stock.
Got about 250 miles on truck after all the repairs. Still shutters at part throttle, check engine light is on. I will try to get scanner, and take readings on a test drive. Without the info from test drive, does anyone have a shot in the dark about where to look first?
We really would need to see the ICP readings and the corresponding IPR duty cycle readings.
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