I got power at the Relay but no power at the pump and no fuel pressure. Is there something I'm missing in between relay and the pump. My truck has a whole new electrical system from a donor I'm talking ECU, BCU new fuse panel inside truck and under hood, cam sensor, crankshaft position sensor, and new cut off switch. Am I missing something?

 

Did you swap the alarm too?

 

Phil is there 1 on a D2? me and Lrsilver are not too sure. if so can you give us the information my trucks broke down in his driveway. Getting a 1668 code too

thanks so much no 1 helping us on this 1 I got a lot of money in this truck!

Joe

 

Is the relay functioning correctly? From what you're saying it sounds like the relay is shot.

 

Yes there is a alarm on the DII, if the ECU, BCU and alarm are not all synced the truck wont start.

 

yes the relay is good. Alarm is in Ecu on the d2 right?

 

I know on the D 1 there is a alarm ecu behind the steering wheel but in the D II i believe that the alarm ecu is incorporated in to the main ecu. So does anyone know if that is correct or what?

 

Phil, this only happens if you only change one or the other not if you change both at same time.... when you change both and the IDM you have to turn key forward to position 2 for approximately 5 minutes and they sync up together. Now since we changed all these parts the truck has started and driven over 150 miles on expressway and then died with the same symptoms as original. Currently we have the same symptoms as day one and we have changed about everything i can think of.

 

I did not know you were working on this with him or that it had been driven.

 

The alarm is incorporated into the BCU on a DII