CM871 complete EGR tune-up now CEL 1866
07-14-2021, (Subject: CM871 complete EGR tune-up now CEL 1866 ) 
Post: #16
RE: CM871 complete EGR tune-up now CEL 1866
Go back and read Rawze's post, he told you these other things to look at as well.......

Reflash ecm

Tarnished connector pins

Wiring problem

It thinks the delta p is unplugged so start checking connections. Go to quickserve look at wiring diagrams.


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RE: CM871 complete EGR tune-up now CEL 1866 - tree98 - 07-14-2021



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