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+--- Thread: Replaced isx cm2350 actuator, low power/engine (/showthread.php?tid=10660)
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RE: Replaced isx cm2350 actuator, low power/engine - Nerv - 07-13-2026
>recently replaced exhaust pressure sensor with new oem
>i will check if it is dirty or not again but it has not been long since doing so, maybe few months.
>the actual insite cummins code is Cummins fault code 1145 (SPN 656 / FMI 7) refers to: Injector Solenoid Driver Cylinder 6 - Mechanical System Not Responding or Out of Adjustment.
>i will do the leak down test and report back
>i cleared the codes, re did the install/calibration of the actuator and now am getting 30pounds of boost and engine brake is stronger, I will know later tomorrow whether or not it is back to normal power/engine brake, as we will be hitting the mountains with a 60k lbs load.
(07-13-2026 )Rawze Wrote:(07-13-2026 )Nerv Wrote: Did the new ecm file update, just took it for a run this morning with a small load, now i have a fault 1145 spn 656 injector solenoid driver cylinder 6 - not responding or out of adjustment. I did clear all fault codes twice after flashing the new file. Not sure where to look now..
== Make sure the exhaust pressure sensor itself is factory OEM.
== Make sure the exhaust pressure sensor circuit is not dirty/clogged with soot.
== What is the actual cummins fault code?.
== Make sure the engine passes a rail leak-down test same as this video...
info: https://rawze.com/forums/showthread.php?tid=8728&pid=75483#pid75483
== it could be an injector or wiring harness going bad.