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P0550 Engine Trouble Code

P0550 Engine

When you check engine light came on code P0550 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 P0550 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

When the check engine light comes P0550 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

P0550 Code Meaning :

P 0 5 5 0
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Intake Valve Control Solenoid Circuit Low Fuel Composition Sensor Circuit Malfunction Turbocharger Boost Sensor A Circuit Low Exhaust Gas Recirculation Sensor B Circuit High

The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.

P0550 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P0550 OBD-II Trouble Code Power steering pressure (PSP) sensor is installed to the power steering high-pressure tube and detects a power steering load. This sensor is a potentiometer which transforms the power steering load in P0550 code.

Reason For P0550 Code

The reason of P0550 OBD-II Engine Trouble Code is Fuel Composition Sensor Circuit Malfunction.

Parts or components should not be replaced with reference to only a P0550 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.