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B3221 Engine Trouble Code

Meaning of B3221 engine trouble code is : When the check engine light comes B3221 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.

B3221 Possible Solution:

B3221 Engine

The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. This causes the ignition coil to provide a spark and the injector to inject fuel into each cylinder at the right time.If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver.

B3221 Code Meaning :

B 3 2 2 1
OBD-II Diagnostic Body (B) Trouble Code For Engine Ignition System Or Misfire Manifold Absolute Pressure/Barometric Pressure Circuit High Input Turbocharger Boost Sensor A Circuit Low Crankshaft Position Sensor A Circuit Low Input

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.

B3221 OBD-II Diagnostic Body (B) Trouble Code Description

B3221 engine trouble code is about Crankshaft Position Sensor A Circuit Low Input.

Reason For B3221 Code

The reason of B3221 OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input.

B3221 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.