O2 sensors check

[burt ragio]

How do I check the O2 sensors for up stream reading using a volt meter ?

[SpartaPerformance]

You can't. To check O2 function you need an osciloscope, or a scan tool that can data stream o2's

[justbob]

Datalog on your PC with livelink using your Xcal. look for about 8 jumps from rich to lean every 10 seconds or inconsistencies between the four.

[Dennis Reinhart]

How do I check the O2 sensors for up stream reading using a volt meter ?


The 02 sensor is the only sensor on a car that generates its own voltage by pizieo electric effect, the way to check them is easy with a Xcal 2/3 bu monitoring there voltage and watching short term fuel trims call me any time I will tell you how to data log this and many more parameters.