What does code P1319 mean?

P1319 · MazdaInjection Timing Piston Position Sensor Circuit Range Performance

P1319 on Mazda vehicles indicates that the powertrain control module (PCM) has detected an out-of-range or performance fault in the injection timing piston position sensor circuit. This sensor, often integrated into the fuel injection pump, reports the piston's position to the PCM so it can precisely control injection timing; when the signal is erratic or outside expected limits, the PCM sets this code and may default to a limp timing strategy.

SystemPowertrain

Code typeMazda specific

SeverityMedium

Fix difficultyProfessional

AreaIgnition system and misfire

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