injector problem

[boondoc]

i know i shouldnt double post but i need some quick help....

01 2500 hd. got 190k on and just did a head gasket job on it. my problem is that now i'm getting alot of trouble codes after i got it back together. here they are in a nutshell: P0201-injector circuit/open cyl 1, P0204-same but cyl 4, P0206-cyl 6, P0207-cyl 7, P1261-Injector Positive Voltage Control Circuit. does this mean that i have 4 injectors that have failed during the gasket change? if so can i change the problem inj. or do all need replaced? thanks for the help. i forgot to ask also, with the 250k injector warranty going on, will the dealership replace these injectors under warranty? or will i have to buy them since i have already r&r'd them for the head job.

Also, does anyone have or know where i can get a wiring diagram for the injectors for this truck? also, is there a way i can check the inj at the plug with a noid or test light to see if its getting a signal at least to the plug?

any help would be greatly appreciated. thanks.

[jaydawg]

First off...u probably continimated the injectors when u undid the inlet lines. As for the codes...Did u correctly connect the 7mm nuts to the injectors?? The injectors are pulsed with a 46 volt charge.

[boondoc]

contamination could be possible. as far as connections, all were put back as they were taken off.