How can I tell which sensor is b1s1 or b1s2?
To know which one you need you really should hook up to a scanner and watch the information flow from each of them B1S1 and B1S2 will have an inverse proportion of voltage. That is to say if S1 is at .9mv, then S2 will be around .01 and visavera as it moves up and down in value.
What to do when you get an O2 sensor voltage code?
When a technician gets an O2 sensor voltage code, step 1 will be to determine if it is a sensor issue or engine performance issue. Most driveability techs will use scan data for this. It will depend upon the car how you approach this, but try to get the vehicle lean and rich to see if the sensor moves low and high.
How many pins does the O2 sensor have?
It is triangular and has 16 pins. Check your owner’s manual or the internet if you are unsure where to locate the DLC. While the OBD2 scan tool is connected to your vehicle, you should take note of the O2 sensor voltage with the Engine Running and with the Engine Off.
What does the p0138 code on a car mean?
Code P0138 means that your powertrain control module (PCM) has detected that the voltage signal from the rear O2 sensor is too high. What is an Oxygen Sensor? All modern cars have at least two oxygen sensors.
When does the O2 sensor open bank 1?
Code P2626 is set by the PCM when the O2 Sensor Pumping Current Trim Circuit for Bank 1 Sensor 1 is open. On multiple bank engines, bank 1 is the bank of the engine that contains cylinder #1. What does an O2 sensor do?
What are the different codes on the O2 sensor?
When the Powertrain Control Module (PCM) detects a malfunction within the O2 Sensor Pumping Current Trim Circuit for the number one known as the upstream sensor, six different codes can be set.
What should I do if my O2 sensor is not working?
Then clear the codes. Some computer systems will shut the O 2 heater circuit off until the codes are cleared. Now, with the ignition switch off, plug the test harness with the light into the vehicle’s O 2 sensor harness connection. The light should remain off until the engine is started.
What is the O2 sensor pumping current code p2626?
Code P2626 is set by the PCM when the O2 Sensor Pumping Current Trim Circuit for Bank 1 Sensor 1 is open. On multiple bank engines, bank 1 is the bank of the engine that contains cylinder #1. The purpose of an O2 sensor is to monitor how much unburned oxygen is in the exhaust when it exits the engine.