Walker Products Oxygen Sensor P/N:250-241321
Walker Products 250-24357 oxygen sensor for the 1998 Hyundai Elantra 4-cylinder 1.8L, the 1999-2000 Elantra 4-cylinder 2.0L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine burns fuel. Built for its specific application and position, it gives the ECU the diagnostic feedback the system needs.
A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Because those signs have several possible sources, look the sensor, wiring harness and connector over for physical damage with the engine off and cool before you buy a replacement.
This is a direct-fit oxygen sensor for the 1997-1999 Hyundai Accent 4-cylinder 1.5L and the 1998-2001 Hyundai Tiburon 4-cylinder 2.0L, as well as the Elantra runs named at the top. It goes in the upstream position, and one sensor is needed in that spot on these cars.
Fit and size
Build and materials
Is this Elantra oxygen sensor right for the 1999-2000 Elantra 4-cylinder 2.0L?
Yes. Walker Products 250-24357 fits the 1999-2000 Hyundai Elantra 4-cylinder 2.0L and goes in the upstream position.
Does this oxygen sensor go upstream or downstream?
Upstream. This sensor is made for the upstream position and gives the ECU the oxygen reading for that spot in the exhaust.
Is this Walker Products oxygen sensor narrow-band or wideband?
Narrow-band. Walker Products 250-24357 is a 4-wire narrow-band sensor with an M18 - 1.5 thread.
Can a bad oxygen sensor turn on the check engine light?
Yes, a failed sensor can light the malfunction indicator light, along with rough running, higher fuel use or more emissions. Newer vehicles store ECU fault codes, and some relate to the sensor.
What do the electrode coating and platinum layer do on this sensor?
The coating shields the electrode surfaces from contamination and erosion caused by combustion residue and particulates in the exhaust. The electrodes carry a gas-permeable platinum layer.
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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.