this am, went out started truck. temp. was 50 deg. out. truck started fine. drove to end of street turned left, drove for less than 1mi. it started to 'sputter' and shimmy, eng. lite came on, had no power, pyro. read 2k, boost non existent. i pulled over and lugged my PPE excelarater for DTC's. it read: PO0480 cooling fan
PO0483 cooling fan speed
P2146 fuel group 1

i have a flex fan elec. cooling fan, but have never had any problem

 

anyone? anyone?

 

The P2146 is usually from an injector solenoid problem. Check the oil level in the truck. You could have a solenoid stuck which would cause it to put excessive fuel into the crank case. You can take a white paper towel and put a drop of your oil on it. If you see a clear ring form around the oil then there is fuel in it. Either way though it looks like you have injector problems.

 

does this mean that a nozzle would be the fix or is this a whole injector problem? just wondering...wow! was hoping to get through the winter before i needed to do my injectors, plus i got 60hp nozzles! yikes! if it is an injector, where do a i find a cheap set of upgraded injectors? would then send mine, hopefully if feasable to get done over... thanks, anything you come up with, let me know.....thanks again, berm

 

You would need to replace the whole injector. Take it in to a shop that knows what they are doing first. I am about 90% sure that is what would be. First remove the programmer to make sure that it isnt causing the problem. Then a good shop can isolate and test the injectors. Then you arent just throwing parts at it.

 

good idea. i thought as much....but, hey, whats so bad about throwin parts to it???
downloader and module or just set back to stock? thanks.

 

Try the programmer and module one at a time. That way you can isolate between the two.