In some cases, drivers report no noticeable drivability issues—just the persistent code.
Dirty or failing Mass Air Flow (MAF) sensors or faulty Accelerator Pedal Position (APP) sensors provide incorrect data to the PCM. mercedesbenz errorp061a98 top
The root cause can range from software glitches to major hardware failures: In some cases, drivers report no noticeable drivability
XENTRY/DAS (preferred) or a high-end bi-directional scanner (Autel MaxiSys, Launch X431). Generic OBD readers will only show P061A – they will miss the "98 Top" nuance. In some cases