Oct 05 E90 330i cranks but no start and no voltage to valvetronic

[laharbimmer]

Spent a few hours looking at diagrams on the Bentley and troubleshooting the car and no luck in getting it to run. Battery is good, fuel psi too, checked all relays(tested them and also used known good ones) and fuses above glove box and ebox. Used the voltmeter to get readings to coils and sensors around engine. Also made sure that wires were all good from end to end. The only item that does not receive voltage, that I found, was the valvetronic unit. With ignition on the 09 Xi wagon and 08 e90 have juice going to this connector. If I read the diagram correctly, there's no voltage either at ECU pins. Anyone run across this issue as well? Am, I correct to deduct having a bad ECU?

Thanks for your input!

[flemm2]

1. Using a scan tool to check the fault/error codes might help.

2. Have you visually checked the valvetronic relay (located in the fuse box in the engine compartment, https://www.realoem.com/bmw/enUS/sho...diagId=61_4309)