Walker Products Oxygen Sensor P/N:350-64025
Walker Products 350-34397 oxygen sensor for the 2005-2008 Chevrolet Astra 4-cylinder 2.0L and other vehicles reads the oxygen left in the exhaust gas to show how efficiently the engine burns fuel. It is made for its specific application and fitment position and sends the feedback the ECU expects.
A failing sensor can show up as a rough-running engine, higher fuel consumption or a lit malfunction indicator light, though the wiring harness and the connector can be behind the same signs, so look them over for physical damage first. This listing is one sensor, and the downstream position on these engines takes a single one.
The 350-34397 is a direct-fit oxygen sensor for the 2004-2006 Mitsubishi Outlander 4-cylinder 2.4L and for the 2005-2008 Chevrolet Astra 4-cylinder 2.0L. It is also an oxygen sensor for the 2004-2005 Mitsubishi Lancer 4-cylinder 2.0L and the 2004-2006 Lancer 4-cylinder 2.4L.
Fit and size
Build and materials
Will this Astra oxygen sensor fit a 2005-2008 Chevrolet Astra 4-cylinder 2.0L?
Yes. Walker Products 350-34397 fits the 2005-2008 Chevrolet Astra 4-cylinder 2.0L, in the downstream position.
Is this Walker Products oxygen sensor narrow-band or wideband?
It is a narrow-band sensor with four wires. The Walker Products 350-34397 has an M18 - 1.5 thread.
Is the 350-34397 an upstream or downstream sensor?
Downstream. This oxygen sensor is for the downstream position.
What problems can come from a failed oxygen sensor like this one?
A failed sensor can make the engine run poorly, raise fuel consumption or light the malfunction indicator light. Newer vehicles store related fault codes in the ECU, which a shop can read.
What does the coating on this oxygen sensor's electrodes do?
The electrodes have a gas-permeable platinum layer. A coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates in the exhaust.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.