What does code P1793 mean?

Q: What does code P1793 mean?

Intake Air Volume Circuit. P1793 on Mazda vehicles indicates that the powertrain control module (PCM) has detected an implausible signal from the intake air volume circuit, which typically involves the mass airflow (MAF) sensor or its associated wiring. The PCM compares the expected air volume, calculated from throttle position and engine speed, against the actual signal from the MAF sensor and sets this code when the two do not correlate within a calibrated range.

DTC codes / Mazda codes / P1793

P1793 · MazdaIntake Air Volume Circuit

P1793 on Mazda vehicles indicates that the powertrain control module (PCM) has detected an implausible signal from the intake air volume circuit, which typically involves the mass airflow (MAF) sensor or its associated wiring. The PCM compares the expected air volume, calculated from throttle position and engine speed, against the actual signal from the MAF sensor and sets this code when the two do not correlate within a calibrated range.

SystemPowertrain

Code typeMazda specific

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

Guidance is general and written for Mazda vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.