| CM871 complete EGR tune-up now CEL 1866 |
| 07-14-2021, (Subject: CM871 complete EGR tune-up now CEL 1866 ) Post: #7 | |||
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| RE: CM871 complete EGR tune-up now CEL 1866 I replaced the pressure sensor new from cummins and also replaced the connector. I let the truck temp get over 170 degrees then turned key to off position. and code is still there. | |||
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