I left the truck idling the other day with the High Idle Engaged at 1050 RPM. When I flipped the High Idle off, it skipped a beat. Checked the codes on the Banks PDA and got the following:

P0300 Fuel Rate Adjustment for more than one cylinder exceeds an acceptable value
P0302 (Cylinder 2) Fuel Rate adjustment for a cylinder exceeds an acceptable value
P0303 (Cylinder 3) Fuel Rate adjustment for a cylinder exceeds an acceptable value
P0304 (Cylinder 4) Fuel Rate adjustment for a cylinder exceeds an acceptable value

It only seems to give these codes occasionally and usually notice after using High Idle.


Any Suggestions as to what might cause these codes. The truck does have 120K on the clock and I have noticed black smoke on WOT at low boost.

If it is injectors, any idea on what one should cost?? Saw them for about $250 but it was not specified if they were new or rebuilt.

 

You'll probably need some injectors. All the vendors here have good deal's on them!
Balance rates above idle mean nothing! Only idle balance rate are used in the diagnoses of injector issues. I've seen injector harnesses on the lly cause issues like this less the codes. For it to throw a code for balance rates it must fail the sampling 3 times in a row for 8 seconds or more. Get a good scanner on the truck and let us know what your balance rates are!

 

gotta get the balacne rates checked sometime. whenever the both of us arent busy we can meet up. you have my # i tink

 

Out in California right now. Don't know if I will be back in TX before Labor day or not. Luckily I flew out instead of driving.

Danny, I do have your number, I will call when I get back and try to set up to meet.

 

well im at UofH 5 days a week so that might be closer for you so we can meet up