When RPM and acceleration simultaneously decrease, it usually indicates a different problem than a brief drop in RPM without loss of performance.
What this combination often means
A weak fuel supply, a dirty intake tract, or an ignition problem across multiple cylinders often leads to precisely this combination of lower RPM and noticeably less thrust.
Check the cause instead of the symptom
With M-JET DIAGNOSTIC, you compare live values such as lambda value and RPM and identify whether a single cylinder or the entire system is affected.
