This is attempt at a pull but the car is too fast for the nearest roads. Will officially data log in the near future.

Bad lambda oscillation. What is causing it? Aftermarket DPs are properly tuned with oscillation reduction on MHD. Injectors are getting noisy. Especially one of them. I know the sound they make can be kind of ambiguous but one time it got really bad and since then I feel like they're slowly getting louder. Maybe I'm paranoid. Lmk what you think.

Cruise and pull looking at lambda readings and fuel pressures. My thoughts are leaking injector and O2 sensors. The car is a catless n54. MHD stage 2. Recent maintenance includes valve cover gasket and spark plugs.