[jjboots]

Got in the truck to leave work and the check eng light came on. Truck wouldn't go more than about 45 on the way home. I pushed in the odo reset button and turned the key to run the inst cluster bit and it displayed "C-Code" and then all zeros. Does anybody know what C-Code is. I did a quick google search and got nothing.

 

[Matt65]

Here's a little on C Codes, but I don't think it's keeping you at a top speed of 45. Few thoughts come to mind: Did you refuel recently? Fuel/Air filter in good condition?

http://www.cumminsforum.com/forum/3...5-what-heck-does-c-code-mean.html#post4466990

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[jjboots]

I learned a little today. Depressing the odo button and turning the key on doesn't give any codes. However if I do the key on-off three times it gives me the P0299. I didn't realize that until now. My bad. Anyway the scanner at Auto Zone pulled the code and is decoded as "boost pressure low". I have a boost gauge and it is definitely making less boost but I'm assuming because of less fueling. The turbo sounds fine, so I' going to pull apart the intake and look for blockages. I guess the boost pressure sensor will come next. So does anyone know where the boost pressure or if it the same, the MAP sensor is on an '05?

 

[Wheels777]

Any excess smoke? Possibly a boost leak


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[jjboots]

No extra smoke or anything of that nature. I just finished putting the intake back together. No blockages or any problems there. I ordered a new boost pressure sensor from dodge. $200 Had to come from Atlanta. Should be here tomorrow, hopefully I can get it before work. Otherwise not until Monday. Anyway, we'll see if it fixes the problem.

 

[Matt65]

From another thread.

P0299-BOOST IN RANGE LOW
When Monitored: While engine is running. Set Condition: The boost pressure is lower than the expected boost pressure based on engine operating conditions.

Possible Causes:
OTHER DTC'S
INTAKE AIR SYSTEM RESTRICTION
TURBO CHARGER DAMAGED
INTAKE AIR SYSTEM LEAK
BOOST PRESSURE SENSOR
TURBOCHARGER INTERMITTENT CONDITION

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