Posted by Anthony PickeringAnthony Pickering
on July 8, 2014, 12:47 pm, in reply to "Vauxhall Corsa Lambda sensor odd voltages"
What is the voltage readings on both o2 sensor signal wires on the harness side with the o2 sensors unplugged?
also with the sensors unplugged whats the live data voltages?
have seen a blocked cat force exhaust gas into the reference chamber of a lambda sensor and that caused pre cat negative voltages but not post cat unless there is a blocked silencer.
