C13 has two flash codes 41 and 92

41 is vehicle overspeed warning, I have nothing on my chart for 92.

72 is a cylinder fault on the number 1 or 2 hole (same code for both), 62 is low Coolant. Maybe you counted wrong?

 

Code 92 is an intake valve actuator #1 or #2 fault.

Source:
http://www.justanswer.com/heavy-equipment/4onp3-does-code-92-2007-cat-c15-mean.html

Scrap. That's for a c15!

 

As already mentioned, 92 is an intake actuator fault for #1 or #2. The only way to get more info than that is to hook it up to get the cylinder and FMI. An FMI of 7 is could be the adjustment, or a solenoid that failed mechanically. If the FMI is 5 or 6, then it could be a solenoid that failed electronically, or a wiring issue . There is also the possibility of a cracked IVA housing, which could set an FMI of 7, but that often leads to a low actuator pressure fault too, but no always.

On Acerts, any flash code in the 90's is the intake actuation or coolant diverter valve (basically the stuff added for EPA04 emissions. On your engine, none of it will cause a shutdown or derate. You may get a lack of power or rough running engine on some failures, but in general, a flash code in the 90's means you can drive it to a shop without worries of a shut down. Just drive it easy, not pushing it too hard until you get it fixed.