Walker Products 350-34290 oxygen sensor for the 2001-2002 Nissan Sentra 4-cylinder 1.8L and other vehicles measures the amount of oxygen in the exhaust gas to show how completely the engine is burning fuel. The part is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it needs.
- Helps fine-tune the air-fuel ratio to support fuel economy
- Electrodes are made of a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
- Monitors exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 350-34290 oxygen sensor
- Fits: 2001-2002 Nissan Sentra 4-cylinder 1.8L and other vehicles
- Position: Downstream, downstream left, downstream right, downstream front
- Condition: New
A failing oxygen sensor can show up as rough running, higher fuel use or a lit malfunction indicator light. Before you replace it, rule out physical damage to the wiring harness and connector, which you can inspect with the engine off and cool; if the sensor is the cause, this one replaces it.
Fits
This direct-fit oxygen sensor replacement covers the 2001-2002 Nissan Sentra 4-cylinder 1.8L and the 2001-2002 Nissan Pathfinder V6 3.5L, and it also works as an oxygen sensor for the 2002-2003 Nissan Maxima V6 3.5L. Cars not named here are matched in the "Vehicles it fits" section, so look yours up there by year and engine. This listing is one sensor, and the fitment calls for one per vehicle at its downstream position.
Specifications
Fit and size
- Position: downstream, downstream left, downstream right, downstream front
- Quantity per vehicle: 1
Build and materials
- Type: narrow-band, 4-wire, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: new
Frequently Asked Questions
Is this O2 sensor the right one for a 2001-2002 Nissan Sentra 4-cylinder 1.8L?
Yes. Walker Products 350-34290 is a direct-fit sensor for the 2001-2002 Nissan Sentra 4-cylinder 1.8L, and the fitment calls for one per vehicle.
Is this the right oxygen sensor for the 2001-2002 Nissan Pathfinder V6 3.5L?
Yes. This sensor is listed for the 2001-2002 Nissan Pathfinder V6 3.5L, with one sensor per vehicle at the downstream position.
Is this oxygen sensor narrow-band or wideband?
Walker Products 350-34290 is a narrow-band, 4-wire oxygen sensor. Its electrodes are made of a gas-permeable platinum layer.
How do I know if my downstream oxygen sensor is going bad?
A failed sensor can make the engine run poorly, raise fuel consumption or light the malfunction indicator light. A shop can read the stored fault codes to see whether the sensor is involved.
Is this Walker Products oxygen sensor an upstream or downstream sensor?
It is a downstream sensor. The catalog lists downstream, downstream left, downstream right and downstream front positions, and each application takes one.
