![]() Screw in the new O2 sensor by hand and tighten it up with a wrench.Apply anti-seize lubricant to the threads of the new sensor. ![]() Make sure the engine is cold before replacing the sensor to prevent burn injury. All you need is a wrench for this replacement job. You don’t necessarily have to visit a workshop to replace oxygen sensor in your Chevy Equinox. You can also perform a continuity test on the connector of the sensor with a multimeter to check if the heater circuit is broken. If you see any error code from P0130 to P0135 or from P0150 to P0155, it indicates a problem with the upstream oxygen sensor. You can diagnose the problem by connecting an OBD2 scanner to your vehicle. If there is any fault in the oxygen sensor, it usually illuminates the engine check light in the instrument cluster of Chevy Equinox. How to check for bad O2 sensor in Equinox? This suffocates the engine and causes performance issues. because of bad O2 sensor), the exhaust gases cannot pass through easily. If these pores get clogged due to improper engine combustion (e.g. ![]() Catalytic converters contain honeycomb-like structures with tiny pores that are coated with platinum, rhodium, or palladium depending on the catalyst stage. Because O2 sensors are relatively cheap compared to the price of catalytic converters, which can easily cost you over a thousand dollars to replace. If you suspect a problem with O2 sensor in your Equinox, you should act immediately and get it checked by a professional mechanic. Bad O2 sensors lead to catalytic converter failureįaulty oxygen sensors are the leading cause of premature catalytic converter failures. If this sensor goes bad, it does not have any affect on the engine performance, but the check engine light may illuminate and you may see error codes related to catalyst efficiency. The main purpose of downstream O2 sensor is to ensure that the catalytic converter is functioning properly. The downstream O2 sensor in Equinox is located further down the exhaust system, after the catalytic converter, and is responsible for measuring the level of pollutants passing through the catalytic converter. Downstream O2 sensors do not affect engine performance Any fault in this sensor can cause all sorts of performance issues in your Equinox. The upstream O2 sensor helps in maintaining proper air to fuel ratio in the combustion chambers for maximum fuel efficiency and engine performance. But the most important one is the upstream O2 sensor, the one that is closest to the engine, usually in the exhaust manifold. ![]() There are multiple O2 sensors in Chevy Equinox, how many depends on vehicle configuration and model year. To reinstall the door, insert the tabs on the top of the door into the console first, then push the door back into its original location.Upstream and downstream O2 sensors Upstream O2 sensors are important for engine performance To access the fuses, open the fuse panel door from the passenger side by pulling it out. ![]() The instrument panel fuse block is located on the passenger side panel of the center console. To remove the fuse block cover, squeeze the clips on the cover and lift it straight up. It can be used to easily remove fuses from the fuse block. There is a fuse puller located in the engine compartment fuse block. There are two fuse blocks in the vehicle: one in the engine compartment and one in the instrument panel.
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