good video bro. keep posting these educational vids. i like this vid. straight to the poin yet detailed.

Thanks for this video man.. very helpful

Great video!!!!

Make more vidoe on ECM daigonosis test and also give knowledge about fault code

what year was this cummins? mine is on the left side instead of right side

How would u know if the common rail pressure sensor is bad

I have a question if you can help me. I am working on this 2011 ram 3500 6.7 and I have problems with the high fuel pressure pump . I have already install 3 new high fuel pressure pump they keep braking they start leaking fuel by the seal and it fill the oil pan .so far what I done (I replace injectors Orings . fuel pressure relief valve. high fuel pressure sensor .the fuel pressure regulator come with the fuel pump the engine run smooth then after 15 minutes start acting up like misfire shake the engine I do have codes for p0254; injection fuel control Circuit High . and then injectio fuel pressure low [ I really appreciate if you help me thanks ]

thank for sharing

Good night I have a cummins ISBE4 that has a fault code 559 and u434 but having real difficulty figuring what is wrong and u suggest what might be the possible causes

How do I know if I have this problem?

Is this valve that you talked about preventing the engine from running?

Pressure relief valve on at front of rail on mine. Simple roadside test was, key off, loosen banjo fitting until see ports, turn engine on, see if any leakage up to 1600+ rpm. If no leakage valve most likely ok.

Whats the part number?

So if the injectors have been replaced and the pressure relief valve has been also replaced and it has that code what other things could it be?

Great video. Im getting a code whenever I put my foot into the throttle for hills, passing, etc.

I get to 29k psi and once i turn off the key it drops to 0 psi in less then 10 seconds i replaced the pressure relief valve but it still doing it.

I have the code 559 rail metering rail1 replaced the pressure relief valve and same shit won't start without either and code comes right back

I get FUEL RAIL PRESSURE code on my dash sometimes when going up a hill or down with Jake brake or passing... Could this be the problem?...I replace my fuel pump and still doing it SOMETIMES

What symptoms did you have?

Code 157 on commings