Good morning, did this problem get resolved?
I have exactly the same issue with my 2013 Relay, P0016 appears as soon as the engine is started but the engine runs fine. I've had a new cam chain fitted and the timing rechecked, new crankshaft sensor, new camshaft sensor, tested the wiring to the ECU from each sensor. The van runs fine for a few thousand miles until the DPF dosing pump fails then goes into limp mode with the check engine light on. If I replace the DPF pump it runs fine again. After every 5mins of driving it does a DPF clean until the dosing pump fails (I'm assuming that this is linked to the can/crank synchronization problem on P0016).
Any help would be appreciated....
Thanks
If you look at the dates of the posts they are old so you are unlikely to get a response, as the poelp may no longer be acitve on the forums. I would suggest you post your issue, and what information you have gathered to date in a new topic to see if anyone can assist.