Lexus is300 wont revv past 3000rpms has code p0103

P0103 OBD-II - Mass Air Flow (MAF) Circuit High Input
This DTC means that there is a problem with the Mass Air Flow High (MAF) sensor or circuit. A more technical description would be that the MAF circuit had higher than expected voltage (air flow). Other MAF sensor circuit DTC trouble codes are P0100, P0101, P0102, and P0104.

A code P0103 may mean that one or more of the following has happened:
- The MAF may be disconnected, or a wiring connection may be bad
- The MAF sensor may be damaged
- The vehicle computer may be faulty (very rare)

Feel free to contact us in this DTC P0103 code link, if you need additional details.

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