Hyundai Other Repair Question
Topics covered: Sensor, Engine, Check engine light.
Mileage: No information provided.
Mileage: No information provided.
Asked on April 26, 2007
Locating the faulty O2 Sensor using an OBD II code reader
Hey! This is in regards to my 1997 Hyundai Accent Sport (194,000 km / 1.6L SOHC, 5-speed manual transmission). I have my own pocket OBD II code reader, and I'm getting a check engine light for an O2 sensor (P0133: "O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)"). Thing is, my car has TWO oxygen sensors. How can I figure out which one this memory address (Bank 1, Sensor 1) refers to physically on the car?
The code book I have has the following available locations listed for O2 sensor issues:
Bank 1 Sensor 1
Bank 1 Sensor 2
Bank 1 Sensor 3
Bank 2 Sensor 1
Bank 2 Sensor 2
Bank 2 Sensor 3
From what the book includes about O2 sensors, they're usually malfunctioning when they're responding slowly. Is there any way to check this response with a meter or some other way? Do you know what this location translates to on my car?
Thanks in advance!
- James
The code book I have has the following available locations listed for O2 sensor issues:
Bank 1 Sensor 1
Bank 1 Sensor 2
Bank 1 Sensor 3
Bank 2 Sensor 1
Bank 2 Sensor 2
Bank 2 Sensor 3
From what the book includes about O2 sensors, they're usually malfunctioning when they're responding slowly. Is there any way to check this response with a meter or some other way? Do you know what this location translates to on my car?
Thanks in advance!
- James
Asked by jduguidAnswer
Replied on May 1, 2007
Bank 1 and Bank 2 refer to the National Bank of Chicago and Philly. Kidding. They refer to the two side of a v engine. Since your engine is a straight inline 4 cylinder you only have bank 1. There is usually two O2 sensors upper and lower (pre-cat and post-cat) The post actually acts as a monitor for the cat. Pre is Sensor 1 and post is sensor 2.