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P0549 Engine Trouble Code

P0549 Engine

When you check engine light came on code P0549 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 P0549 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.

P0549 Code Meaning :

P 0 5 4 9
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Fuel Composition Sensor Circuit Malfunction Engine Shutoff Solenoid Malfunction 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.

P0549 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0549 engine trouble code is about Ignition Coil A Primary/Secondary Circuit Malfunction.

Reason For P0549 Code

The reason of P0549 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

P0549 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.