CM871 complete EGR tune-up now CEL 1866
07-14-2021, (Subject: CM871 complete EGR tune-up now CEL 1866 ) 
Post: #3
RE: CM871 complete EGR tune-up now CEL 1866
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these are both the same code...
SID-324,FMI-2 = cummins fault code 1883. DPF Delta-P sensor unplugged / intermittent.

SPN-3251,FMI-2 = cummins fault code 1883. DPF Delta-P sensor unplugged / intermittent.


==========

these are both the same code...
PID-411,FMI-2 = cummins fault code 1866. EGR Delta-P unplugged / intermittent.
SPN-411,FMI-2 = cummins fault code 1866. EGR Delta-P unplugged / intermittent.



-- So check that they are plugged in properly .. maybe bad sensor .. sometimes they can be bad from new .. especially if you got them off flea-bay or some non-OEM place.. and if they are OEM, then source them from a different dealer.


ALSO -- if the ECM programming is old, it may simply be that the ECM needs updating to accommodate a change in those newer sensors... but usually it is an out of range fault and not an "unplugged" fault though.

- Could also be bad wiring harness or tarnished pins in the plugs.


User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!.
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RE: CM871 complete EGR tune-up now CEL 1866 - Rawze - 07-14-2021



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