search

rusefi / alphax-4chan

3 stars 4 forks source link

M54 wired as PNP has odd issues in cylinders 5 and 6 #182

Open ElDominio opened 4 months ago

ElDominio commented 4 months ago

Tune and log: https://rusefi.com/online/view.php?log=1411

The car fires injector and ignition 5 and 6, but unplugging them with engine running results in no change; the engine backfires sometimes, which is strange? Coil 1 and 3 are swapped physically, so that's why the pins are swapped in firmware. Testing coils and injectors 1-6 is on the correct cylinders according to numbers on the Bench Test area.

It sounds as if 5 and 6 are firing in the wrong place, but they fire correctly in test mode? I am incredibly confused

rusefillc commented 4 months ago

please remove fly back diodes?

please convert to batch fuel if above does not help?

image

image

rusefillc commented 4 months ago

@ElDominio maybe those

image

rusefillc commented 4 months ago

WhatsApp Image 2024-07-11 at 22 25 10_4f8063f0

ElDominio commented 4 months ago

Flyback diodes were the problem, removed and we have full power

rusefillc commented 4 months ago

@ElDominio what's the next step for this ticket?

ElDominio commented 4 months ago

Closing it? Remove it from default BOM?

rusefillc commented 4 months ago

@ElDominio yes we can remove a couple of default BOM if you need

ElDominio commented 4 months ago

removing diode was fix so i think it can be closed