Backfire/diesel after shut off

[gear_grinder]

Hi

i've gotta 97 v8, after it has been run for a while and brought up to operating temp and then shut off it lets off two very light backfire/diesel ignitions. i "recently" rebuilt the engine and do not have my roller rockers adjusted properly (they are too "tight") but it did the same thing befor i rebuilt the engine and put the rockers on it, leading me to think that it is not their missadjustment causing the symtoms.

I know that the EVAP is not working correct, as the distribution manifold under the manifold is basicaly destroyed, but other then that as far as I and the OBDII can tell they're are no other problems.

Thanks!

 

[gear_grinder]

nO ideas? thanks!!


i've rememberd that the rear few runners have been "wet" ish everytime i've taken the plenum off and that after it sits for a while it takes an extra second or so to get started, i'm thinking i have leaking injectors.