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P1409 Engine Trouble Code

P1409 Engine

When you check engine light came on code P1409 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P1409 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

Theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

P1409 Code Meaning :

P 1 4 0 9
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Fuel Temperature Sensor B Circuit Range/Performance Cylinder 10 Contribution/balance Fault Ignition Coil A Primary/Secondary Circuit Malfunction

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

P1409 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1409 OBD-II Trouble Code EVR Control Circuit Malfunction is one of the definitions for the P1409; however your vehicles manufacturer may have a different definition for the P1409 code. Please check below for your specific mak P1409 code.

Reason For P1409 Code

The reason of P1409 OBD-II Engine Trouble Code is Fuel Temperature Sensor B Circuit Range/Performance.

P1409 DTC reports a sensor fault, replacement of the sensor is unlikely to resolve the underlying problem. The fault is most likely to be caused by the systems that the sensor is monitoring, but might even be caused by the wiring to the sensor itself.