Originally Posted by Giffie
i have a 2003 crd swapped motor to 05 not the ecu but not starting any help on this. The ecu is stil of the 03 just extended the crank sensors wiris not getting signal to injectors
How can you use a 2003 ECU on a 2005 engine?
There are major differences including the fact that the 2003 has a fixed vane Turbo and the 2005 has a variable vane turbo, 2003 has 12 volt glow plugs and no control from ECU while the 2005 has 7 volt (standard) glow plugs with a seperate glow plug controller.
2003 CRD , Export obviously, use a PCI bus for communications while 2005 uses a CAN bus mainly with only some PCI usage.
2003 CRD has the Alternator charge rate monitored and set by the ECU...2005/6/7 alternator has a built-in regulator.
The EGR is worked differently, 2003 does not have a Flow Control Valve, 2005 has an airflow sensor on the air intake.
Fuel delivery rates will be different etc.
Yes the engine in theory may start and run badly but there are so many sensors around on this engine doing various checks that I would only consider putting a 2005 CRD engine into a 2003 chassis if I could replace the ECU, TCM (if fitted) and complete wiring harness at the same time.
I think I have just answered your question for you
All of you guys having problems here on this post with your CRDs...I would suggest you go to the "CRD Liberty Love the Torque" section at:
All the experts are there!