2 Attachment(s)
Engine stumbles and knocks on acceleration
This only happens on the first and sometimes second time after a startup when accelerating. The motor will stumble like it can't get fuel, then hit some pretty good KR, recover, then be OK after that. This usually goes away after it happens the first time when attempting to repeat the issue - until next startup. WOT throttle has no fuel starvation issues, so delivery to the fuel rail is not the issue. Aside from this issue, the drivability is spot on.
6.0 E38 LSA
850cc Fuel injector Clinic
47 psi base fuel pressure with boost reference (works properly, can verify 1:1 increase from fuel pressure sensor)
Logs and tune provided.
Attachment 144728
Attachment 144729