Hi Volvo People.
Does anyone have a reliable test for determining if the 2 Lambda sensors in my exhaust are functioning properly?
My V40 1.8i has been pretty bad on fuel recently, and I was wondering if this was due to the Lambda sensors.
Thanks, Dave.
After thoroughly warming up the car (by driving, not at idle), leave the engine running and put a high impedance voltmeter between the oxygen sensor signal wire and ground. The voltage should vary 3-4 tenths of a volt up and down centered around .45V several times per second. Or, put another way the voltage should vary from about .1 up to .8.
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.