Dodge Journey: Bad O2 Sensor → Symptoms and Causes
Oxygen sensors are important for both engine management and emissions control, and if one fails, your Dodge Journey’s engine will run less efficiently. The good news is that they’re not that expensive to replace.
Bad Oxygen Sensor Symptoms: Dodge Journey
There are multiple oxygen sensors in your Journey, and they can be difficult to access and test. The trouble codes associated with the OBDII scan will reveal which sensor is at fault.
Service Engine Soon Light
There are a variety of oxygen sensor-related codes, which correspond to which side of the engine they are on (known as the “bank” for cylinder bank). An oxygen sensor that is located between the catalytic converter and the engine is referred to as an “upstream” sensor.
Loss In Fuel Economy
The oxygen sensors in your Journey are in charge of keeping your engine running at peak efficiency. A bad oxygen sensor can affect the mixture of air and fuel in an engine, and the computer uses data from all of the O2 sensors to keep the air/fuel mixture optimized.
Bad Smelling Exhaust
One of the most common signs that an oxygen sensor has failed is foul-smelling exhaust, which has been described as smelling like “rotten eggs” or sulfuric.
Engine Running Rough
A sluggish engine could indicate a faulty oxygen sensor or even a misfire.
Oxygen sensors are one of the most common causes of engine failures, and without a check engine light, it can be difficult to figure out what’s wrong with a vehicle because there are often no visible signs of a bad oxygen sensor.
Journey Bad O2 Sensor Symptoms & Causes: Conclusion
When your Dodge Journey’s oxygen sensor(s) fail, there may or may not be any noticeable symptoms; it’s a good idea to use a scan tool to see if any of the sensors have an OBDII trouble code associated with them. Good luck diagnosing your Journey!
Where is the O2 sensor on a 2012 Dodge Journey?
Before and after the catalytic converter, oxygen sensors are installed.
How do you reset an O2 sensor?
Wait five minutes after turning the ignition to “On,” but don’t crank the engine (it won’t start anyway), then reinsert the fuse. The “Check Engine” light will blink, then shut off.
How many O2 sensors are on a 2009 Dodge Journey?
I realize this is an old thread, but I came across it and thought answering the question might be helpful to someone. The 2009 Journey 3.5l has two o2 sensors on the left side of the engine, closest to the bumper, and two on the right side of the engine, closest to the firewall.
Where is the oxygen sensor bank 1 located?
Sensor 1 is the oxygen sensor or Air/Fuel sensor in the exhaust manifold closest to the engine. Sensor 2 is the oxygen sensor in or behind the catalytic converter. On V6 and V8 engines, Sensor 1 is always on the SAME side as the Number ONE cylinder in the firing order.
What is Bank 1 on a V6?
The rear oxygen sensor is labeled “Bank 1, Sensor 2” on a V6 or V8 engine, which has two banks (or two parts of the “V”).
What does the o2 sensor screw into?
The O2 sensor functions as a miniature generator, producing its own voltage when it gets hot. A zirconium ceramic bulb is housed inside the vented cover on the end of the sensor that screws into the exhaust manifold, and the bulb is coated on the outside with a porous layer of platinum.
How do you remove oxygen sensor without socket?
If you don’t have a wrench, use your flat-combination spanner, which is usually 22 mm. Since you applied the penetrating oil earlier, the sensor should be much easier to remove by now. If it doesn’t come out easily after the specified time, try heating the area around the sensor with a heat gun.
What is the thread size of an oxygen sensor?
Except for a couple of Toyotas, most oxygen sensors are 18mm x 1.25.
How long does it take for oxygen sensor to reset?
Replace the fuse and the check engine lamp will blink and then turn off, indicating that your ECU has been restored.
Can a car run without O2 sensors?
O2 sensors were introduced primarily for the purpose of reducing emissions, so the answer is no, they are not required for engines to function properly if they were designed to run without one.
What causes an oxygen sensor to fail?
Because the oxygen sensor is in the exhaust stream, it can become contaminated from a variety of sources, including an excessively rich fuel mixture condition or oil blow-by in an older engine, and engine coolant being burned in the combustion chamber due to an engine gasket leak.
How many O2 sensors does a Dodge Caravan have?
At least one oxygen sensor, or O2 sensor for short, is standard equipment on all Dodge Caravans. The sensor measures the mixture of air and fuel entering the engine.
Which O2 sensor is bank2?
Bank 1, Sensor 2 is the downstream oxygen sensor located in the exhaust behind the catalytic converter, and Bank 1 is the engine bank containing cylinder 1. V6 and V8 engines have two banks and two catalytic converters, one for each bank.
Does a Dodge Journey have a catalytic converter?
In general, the Dodge Journey has a dual catalytic converter setup, though this varies by engine configuration and model year; for each, a catalytic converter is installed inline with the exhaust pipe, closer to the exhaust manifold than the tail pipe.