Mar 22, 2008 · I can't seem to find much information about symptoms of an optical sensor failure. Heres what happened: Yesterday, I mixed some filtered used engine oil in my gas (diesel is up …

Apr 8, 2012 · Injection pump -Optical Sensor Issue! Jump to Latest 28K views 8 replies 7 participants last post by Dadddyoh Sep 17, 2021 6

Jun 9, 2022 · Hello guys. First, sorry for my english, not my native language. First post for me. Chevy Tahoe 1994 6.5 i rebuilt engine but I'm not able to find right position of injection diesel …

Mar 3, 2014 · Hi! I'm new here and my 6.5 has thrown a P0251. Can I get by with cleaning the optical sensor up or do i need to replace it? Thanks!

Oct 21, 2014 · 6.5l optical sensor Jump to Latest 14K views 25 replies 6 participants last post by JCDiesel Oct 29, 2014 H

Jun 11, 2008 · The optical sensor (OS) also provides a Pump Cam signal to the PCM by counting pulses on the sensor disk located in the injection pump. The optical sensor is one of the most …

Oct 26, 2022 · How to check optical sensor on 1999 C 3500 with 6.5 turbo. Runs great one minute hard to start next. Be running good next minute buck jumps rpms drops and...

Sep 22, 2020 · Im curious as to what the symptoms of a bad or faulty optical eye on a 1994 6.5 turbodiesel are ! can anyone tell me ? i dont think its the problem but would like to rule it out !

Sep 26, 2019 · Water in Fuel sensor on the side has an ORing Fuel can sometimes leak through the grommet on the side for the wires. Remove the FFM completely and inspect things. The …

Aug 30, 2023 · How many of you have successfully changed the optical sensor o-Ring(were the plug goes through the cover?) I have a low mileage pump that has good closure and fueling, …