Smarty JR / UDC and pre injection

[RedRotors]

I'm about to get UDC, and I'm wondering if I can disable the pre-inj, even if it's a SSR option..

thanks,
R

 

[Lightman46]

Only if you have the SSR Smarty, UDC does not disable pre-injection only the smarty does

 

[dangerous06]

Good luck with the main injection timing! Never heard of it being beneficial.

 

[RedRotors]

thanks guys. I'm already tune diesel cars, so cummins should be closed to our CR.. While waiting EFI, will give it a shot with UDC..