871 Low Boost / VGT Commanded
10-03-2022, (Subject: 871 Low Boost / VGT Commanded ) 
Post: #1
871 Low Boost / VGT Commanded
Kinda jumping gun here but wanted to throw this out there see if anyone else has input that might help

CM871 - 2010 - International ProStar DayCab - ECM has M&M was done year ago and truck has been fine since then. Now Low Boost, will only build 8-9 Lbs. Replaced Turbo(turbo would not calibrate) , Calibrated during install etc. New turbo had no problem calibrating as the old turbo did so did not replaced the Actuator.

Now noticing
Turbo Actuator Position Commanded is reading 0 !! NEVER MOVES DURING OPERATION
Turbo Actuator Position Measured is reading 48% at Idle , 1800 RPM went down to low as 27 %

Going to replace the Actuator and check the plugs/wiring.

Any other ideas or thoughts.

Thank you
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871 Low Boost / VGT Commanded - Smooth - 10-03-2022



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