Posted by James EardleyJames Eardley
on September 1, 2012, 3:43 pm, in reply to "Toyota Avensis 1.8 1999 poor Lambda behaviour"
Hi Paul
Is this a zirconia sensor or an air/fuel ratio sensor.
If it is a zirconia then with a snap throttle I would expect
To see .8v / fully rich mixture in under 1 second on a scope screen. Use the TPS as something to measure the lambda response against.
Also snap the throttle on a lean lambda switch for best results and to challenge the system.
James
