Sensors Barometric Pressure For Saturn Relay. It indicates your Saturn Relay's MAP (manifold absolute pressure) sensor's voltage reading is outside of the normal operating range. It's most commonly caused by a bad MAP sensor, wiring issue, or vacuum leak.

Check engine light is on - OBD II returns P2430 Secondary ...
Check engine light is on - OBD II returns P2430 Secondary ... (Pauline Roberts)
Other essential sensors include the ones within the engine management system that rely on those sensors for dependable operation. We've taken it in but the mechanic says nothing is wrong. Price: No parts for vehicles in selected markets.

Besides luxuries like backup sensors, you should also care for vital parts such as brake fluid pressure sensors and accelerator pedal sensors.

When it goes off, the temp does not go up.

Check engine light is on - OBD II returns P2430 Secondary ...

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It indicates that the fuel rail pressure sensor is receiving a signal that is outside of its normal range. Find aftermarket and OEM parts online or at a local store near you. Most auto parts stores call it a MAP sensor but its actually a Barometric sensor.