Both models have valvetronic although n52 has valvetronic servo motor which caused a lot of issues and was then removed on n53

tintoverano wrote: ↑Sun Jul 02, 2023 11:11 am

sajn wrote: ↑Sun May 14, 2023 10:30 pm N53 does not have valvetronic is direct injection

how are the two connected?

it does have both valvetronic and vanos

The n52 has a valvetronic motor and the n53 does not have this

Quick update After setting up inpa deleted all adaption values and errors after as lots of error mesages came up, no longer had misfire on cylinder 6, had error p0030 which is lamda sensor pre cat, replaced bank 1 and bank 2 sensors, car is better but now getting p0174 which is running too lean ...

N53 does not have valvetronic is direct injection

If you have picoscope you could place on signal pin and voltage pin to see if ecu is sending signals.

Update on cylinder 6 misfire P0306: So used the picoscope for 1st time am new to using picoscope and last time i used an oscilloscope was in college days. I checked signal on cylinder 5 and 6 coils, then i measured signal on injector 5 and 6, used hanteck ht-25 on exhaust as well, from these it ...

Any update on this was root cause found ?

THi and welcome everyone so glad to join forum. I have bmw n53, 2007 which is driving me slightly mad. Summary of story: The engine started rough idle and multiple cylinder misfire with lack of power, so replace 6 injectors, 6 coil packs and 12 spark plugs {6 before injector replacement and 6 after ...