Can an O2 sensor be bad and not throw a code?
Like other engine sensors, there’s no need to replace an O2 sensor as long as it is working properly and accurately reading the oxygen content of the exhaust. Such problems may not be bad enough to set a code, but they could have a detrimental effect on engine performance, fuel economy and emissions.
Why do I have 2 O2 sensors?
Two oxygen sensors per exhaust pipe allow a vehicle’s engine control computer to compare the cleanliness of the exhaust before it enters the catalytic converter to the exhaust after it exits.
Are left and right oxygen sensors interchangeable?
Upstream or downstream , left or right, doesn’t matter, Ford, GM, Dodge, doesn’t matter, they are all interchangeable if wire and connector match up. Recently there was a change to A/F(or AFR) sensors instead of O2 sensors, they are known as Wide band sensors.
How often to change O2 sensor?
Heated three and four-wire O2 sensors on mid-1980s through mid-1990s applications should be changed every 60,000 miles. And on 1996 and newer OBD II-equipped vehicles, the recommended replacement interval is 100,000 miles. A good oxygen sensor is essential for good fuel economy, emissions and performance.
How can a bad oxygen sensor cause poor acceleration?
A bad oxygen sensor will make it hard for the ECU to adjust for the necessary amount of fuel during sudden acceleration. This can be because of the O2 sensor constantly running in “open loop mode”.
Where is the downstream O2 sensor located?
The downstream oxygen sensor is located in the exhaust pipe after the catalytic converter. The role of the downstream oxygen sensor is to monitor the working and efficiency of the catalytic converter. There may be one or two oxygen sensors depending on the number of cylinders. The ECU compares the signal from upstream and downstream sensors.
Where is the oxygen sensor located on a Dodge Dakota?
Location. On pre 1996 DODGE Dakota vehicles the oxygen is located in the exhaust manifold or front exhaust pipe near the exhaust manifold. Four cylinder has one oxygen sensor and V6 and V8 may has two, one for each engine bank. On 1996 “MAKE MODEL” and later OBDII equipped vehicles will have a least two oxygen sensors.