2006 T5 2.5 AXD Engine Not Starting California Camper conversion.

Second what @manfrotto said, cracked head would still run but with other issues. Smoke, coolant loss etc. I also believe this is a immobiliser issue. I would be looking for someone to remove the immobiliser from the ECU. To rule it out


 
re reading this thread, the VW dealer cleaned tank and fuel pump and tested. THEN refitted to vehicle. Could be red herring but did they test it AFTER it was re-installed. I would like to think they have some intelligence rather than just following a diagnostic script.
 
Looks like as VW sells cylinder head as a fairly complete package.
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Also it seems it will be soon on a clearance sale...
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Per AXD (5-cyl 96kW variant) engine workshop manual AXD doesn't have DPF.
Also wiring diagram for AXD engine doesn't have G450 exhaust pressure sensor suggesting no DPF.
Before my T6 I had T5 & AXD engine and definitely no DPF.

However, DPF was onboard on T5 BNZ engine (also 5-cyl 96kW), from January 2006 onwards, as well on T5 5-cyl engine BPC (128 kW).

Well, it seems that there was a retrofit kit for DPF available.
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