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 2009 freightliner m2 business class
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krisackermann
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7 Posts

Posted - 03/11/2014 :  10:49:22 PM  Show Profile  Visit krisackermann's Homepage  Reply with Quote
i have a 2009 freightliner me business class with a mercedes m906. it is showing no oil pressure at the guage in the truck with engine warming light engine protect light and oil light on. truck shuts off after a short time of running. i have checked oil pressure manually and have around 50psi at idle and it goes up when accelerated. replace oil pressure sensor and same problem. i have 4.93v feed power to sensor and show voltage going out of it. i ohmed harness from sensor to ecm and have .3 ohms on both wires. i am kinda at a loss. idk where it goes out of the ecm to go twards to gauge cluster. anyone have any ideas or schematics to help show. i have no access to any of them. i hooked up our computer and can get into freightline to see a low oil pressure code. my computer will not let me get into detroit deisel to see the engine so i cannot comfirm air pressure being read at ecm. took to dealer and they said it needs the harness i ohmed out fine. anything will help thank you.

krisackermann
New Member

7 Posts

Posted - 03/11/2014 :  11:18:29 PM  Show Profile  Visit krisackermann's Homepage  Reply with Quote
if it can read at the ecm and have a problem and cannot read at gauge cluster threw some module could that cause it to shut down?
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