HELP lb7 injecot balance rates read 0 in park
 

I have a 01 2500 with idle surge. looked at injector balance rates they all say 0 at idle if in park but in gear they all show numbers and truck idles smooth. with injector 6 shut off idle smooths out and engine gets quieter. my question is, is this an electrical isue not haveing injector balance in gear or is injector 6 bad and this is shutting down the blanace rates. any help is great

are you giving the truck throttle while youre pulling the balance rates? how many miles are on it? do you have fuel in your oil? are you having hard starts? what are you pulling the balance rates with? have you pulled your rail pressure at idle as well? and what mods are done to the truck.

give me those answers and well be able to help you out further

im not giving it throttle the app shows it at 0% The truck has 175000 on it the injectors have been done not sure when the truck is a friends. i dont notice any diesel in the oil. the starts arent bad and im getting the blance rates with an OTC Genysis. the fuel pressure at idle is a little over 5000 psi. i was wondering if a leaking 6 injector is raising the idle enough to take it out of injector balace.

acceptable limits on injectors are +-4 at idle in park, +-6 at idle in gear, so if they show around 0 then they are well within spec