Crank Pressure

Which engine if its cummins check the crankcase breather on the left front side right behind the intake also check and make sure the blow bye tube is not plugged

 

Remove your oil cap and see if that stops the problem. If it does, your crankcase breather or draft tube may be stopped up.

 

I have had this happen on a couple of volvos from a EPG for the warm up mode. It was completly blocking off exhaust. To get it home we were able to unplug the EPG solenoid (the box that controls the EPG plunger just after the turbo.) It is usually located just on the frame rail or I have seen other models bolted to the side of the engine. just follow the air line from the epg housing it will lead to the solenoid. I would be worth a try.

 

crankcase pressure sensor or wiring harness fault. I usually got away just by switching off and on again on the fly but some of my friends had to get the sensor changed. Don't know if you can just unplug the sensor and drive on?

 

usually electrical fault of crank pressure sensor just thows codes, but when sensor is old it reads more pressure then you habe so replace this sensor