SES Light, NO Codes, OD Off light does not work, ONLY when warmed up - Ford Powerstroke Diesel Forum
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Old 01-13-2013, 02:34 PM
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SES Light NOW have some codes and data

Sorry for the long title but this started last weekend out of the blue. As it says, the SES light came on and engine ran a bit rough and wanted to die but only after getting warmed up? So I plugged in my laptop with my trusty copy of AutoEnginuity with Ford module and whoa, the ODB2 plug was dead! Sooo I replaced fuse #3 under the dash and by then the truck had cooled off so I ran it a while and SES came back on and no codes at all with SES light on, engine idling rough and so on. So today I went to two auto repair shops and both their code readers showed no codes either? I though maybe a trans issue so I tried manual shifting and also pressing the OD Off button and it did not work at all and SES light stayed on.

I found out my advanced Ford module for my AE software was not activated due to a hard drive swap. Soooo Those great folks sent me the activation codes. Here is what I found:

- P0475 on startup but no SES light so I cleared it.
- After warm up SES light came on with P0475 again. Tested the arm and it is free to move?
- Did all the tests and the buzz test returned P1272 for #2 injector both cold and hot? Checked connections external to valve cover and it is good.
- Noted injector control pressure at idle was 520#? Is this okay?

So any ideas and I will have to do the injector after I pull the valve cover it seems to test the internal plug?

Last edited by oldracer; 01-15-2013 at 04:20 PM. Reason: bold some text
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Old 01-13-2013, 05:26 PM
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I've seen it with a plugged fuel filter, low p-steering fluid and clogged air filter. Not all at same time of course.
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