I get a 95 on mine and it does the same as his. I’ve changed the sensor and selenoid. Still have an intermittent 95 code.
C15 derate
Discussion in 'Trucks [ Eighteen Wheelers ]' started by davis584, Aug 7, 2018.
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Did you check over wiring harness over well for rubbing to VVA pressure sensor especially by thermostat housing. Check to covering for rubs. Code 95 is high or low voltage code(out of range) for VVA oil pressure sensor.
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I believe if it derates boost will also go down. It sounds like something electrical that resets when you shut down. The ECM battery is probably dead, that's why it wont store codes. Mine does that if I disconnect batteries. By any chance do you have a battery cut off switch? That might explain why codes disappear when your shut off engine.
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