Mar 4, 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!

Apr 8, 2012 · Injection pump -Optical Sensor Issue! 1 reading Jump to Latest 28K views 8 replies 7 participants last post by Dadddyoh Sep 18, 2021

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 16, 2007 · Can the fuel termperature sensor be sourced without buying the entire injection pump? Here's my issue: PCM is throwing codes 17, 18, and 35. I've pulled the intake manifold …

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...

Oct 1, 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, …

Oct 25, 2008 · Optical Sensor, bad? Jump to Latest 14K views 5 replies 4 participants last post by abwdvm Oct 25, 2008 abwdvm Discussion starter

Jun 12, 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 …

Sep 17, 2009 · well im hoping somebody on here can help me, as i have found very little on this subject. i removed the optical sensor from my IP on the truck in my sig over the weekend as …