Hello,
what is the definitive guide to lambda sensors here?
Presuming everything was correct and operational before the swap (according to MEMS Diag). What could have caused the new sensor to fail? By correct, I mean the lambda signal was oscillating as it should at idle. By faulty, I mean the same signal with a hot or cold engine is fixed at 435mV at idle.
At this time I have also had the inlet manifold and coolant temperature sensor replaced. Along with new bolts on the cat. I only changed the lambda sensor as it was old and within reach.
Specifically what are the exact conditions for the lambda sensor to run in closed loop operation? Information on this website and across the internet is unclear.
Two relays activate the lambda sensor yes? One in the black relay box by the ECU and a yellow one on the other side of the engine bay.
Thankyou for your time.
Elliott.
Edited by nomoreheroes, 26 March 2021 - 08:29 PM.