Need Help with 2004 passat TDI

[QR12]

Hello, i have a 2004 passat tdi 2.0L BHW that i bought not running. It has 150,000 miles on it and it has been serviced regularly. The previous own said they where driving it one day and it just shut off. I change the ecu and it starts now, but idles very rough, almost like it is missing, and when you put it in gear it stalls. I checked some stuff with VCDS and there are no fault codes. I checked cam timing also and it's at -0.5, which i was told was fine for this engine. Does anybody know what is wrong or what i should check?

Thanks!

[Matolek]

check the oscilloscope if there is a signal from the sensor camshaft and the crankshaft sensor, and whether the unit injectors get fuel from the wakum pump and the voltage from the ECU

[mackan]

its worth checking the wiring harness to the injectors, its quite common with failure with this, strange that nothing shows on VCDS, but stranger things have happened, best of luck !

[QR12]

Have single from cam and crank sensors, getting fuel, all injectors are getting signal, compression test was good on all cylinders. Idle stabilization is way off, think I have two clogged or bad injectors.