Help, what do these mean?

 

What do they mean?



In most cases 0216 and a dead pedal (I also read your other post) means that your injection pump (VP-44) is fubar.

Do you have an in cab fuel pressure guage or some other means of measureing fuel pressure after the fuel filter?

 

Nope, just a stock truck, am I in big trouble?

 

Having a stock truck has nothing to do with it. The stock trucks have a crappy fuel system and if you dont have a fuel pressure guage in the cab you cannot monitor the amount or fuel delivered to your injector pump.

I would guess that your lift (transfer pump) is dead as well. So, its gonna probably be a few thousand $.

I will have to look up the 121 code as I do not know it off the top of my head.

 

"P0121 Throttle/Petal Position Sensor/Switch A Circuit Range/Performance Problem"

You can try resetting the APPS:

APPS Reset Procedure
Answer: This procedure has shown to help 24 valve ISB engines. It is basically teaching the fly by wire accelerator on these trucks to reread the position of the pedal and it's limits. Most complaints this will help with is poor acceleration, improper shifting, bucking in 5 and 6 speeds. Has been known to increase fuel mileage in some instances.

1. Set parking brake
2. Disconnect negative battery cables on both batteries
3. Turn ignition key to run(to drain any remaining capacitors)
4. Let truck sit for 30 minutes( this is the recommended minimum)
5. Return ignition to OFF position
6. Reconnect both batteries and secure, not a timed event
7. Turn key to run position(not start) and depress accelerator pedal slowly all the way to the floor
8. Allow pedal to return to top position slowly
9. Turn ignition switch OFF
10.Release parking brake

Your APPS could be bad as well.

I think the best place to start would be to have the fuel pressure checked.