3 Attachment(s)
Audi 3.0t B8.5 Fuel Injector Issue
I have a 2013 Audi S5. Been tuned with HP now for several years and have had some help here in the past so hopefully we can figure this out.
I just bought all new injectors from ECS Tuning (ES#4674750). ECS claims they are a drop in OEM replacement. However when I start the car it's rough, idle is like I have a big camed V8, LTFT are 25%, and it drives terribly and is jerky on and off throttle while cruising. WOT seems fine however. I was getting too lean mixture codes but after a day of it doing fuel trims that seems to have gone away.
I'm not sure if the injector dead time is different, if the flow is different, no clue. After arguing with ECS customer support they told me they have no spec sheet on the injector as they are an OEM direct replacement. as well as they have sold 130 of them so far with no complaints or issues.
Attached is a data log before the injector job was done, one after, as well as the tune file I am running.