However, a bad MAF sensor *can* cause the symptoms you describe: high RPMs and sluggish acceleration. A faulty MAF sensor provides inaccurate readings of the air entering the engine. The engine computer (ECM) then compensates incorrectly, resulting in a rich or lean fuel mixture, leading to poor performance. This can manifest as high RPMs (the engine is trying to compensate for lack of power) and slow acceleration.
Therefore, while the MAF sensor is a strong suspect for the high RPMs and slow acceleration, it's not likely the cause of the transmission light. You'll need to diagnose the transmission issue separately. It could be a variety of problems within the transmission itself, or a sensor related to the transmission's operation (like a speed sensor or transmission fluid temperature sensor).
Recommendation:
1. Diagnose the Transmission Light: Get the trouble codes read from the transmission control module (TCM). An OBD-II scanner can do this, or a local auto parts store often offers free code reading services. The codes will provide clues about the specific transmission problem.
2. Test or Replace the MAF Sensor: While it might not be the cause of the transmission light, a bad MAF sensor needs to be addressed to fix the performance issues. You can either have a mechanic test the sensor or replace it relatively inexpensively. Replacing it is often a good first step given its impact on engine performance.
In short: Two separate problems are likely occurring – one impacting the engine (likely the MAF) and the other affecting the transmission (requiring separate diagnosis via trouble codes). Address both independently.
