will not run, no signal to injectors

Hello my name is Dave.

First thing I would check is to see if you have any trouble codes, your truck is OBD2 compatible. Here is a link to our tutorial on retrieving trouble codes:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Depending on the results of your scan next thing I would check is you have power to your injectors. A simple test light will test this just fine since it's battery voltage that powers them. Simply turn the key to run and test the leads going to the injectors. If you have power then the most likely suspect is going to be the crank position sensor, if it doesn't have power I would check the ECU main relay, I have attached a diagram of the relay box and the legend showing which relays are which. The relay box is the one right behind the cab on the driver's side of the truck. I have also attached a diagram of the location of the crank sensor to assist you.

If you can perform these steps and let us know the results we will be glad to help you narrow down your issue. We look forward to hearing back from you and thank you for using 2CarPros!

Thanks for reply, no voltage to injectors, no codes on obd2. Check ECM fuse it is good and has 12v. Replaced cam and crank sensor. It is an nqr not and npr, the system didnt let me choose nqr. Don't know if that makes a difference with fuse/relay etc. It is a 4 cylinder turbo 5.2 diesel.