Hi, Anyone know how best to check correct operation of Lambda sensors.
Taliesyn Junior Member Messages 121 Sep 7, 2017 #1 Hi, Anyone know how best to check correct operation of Lambda sensors.
voicey Member Messages 660 Sep 7, 2017 #2 The best method is to scope the output. The most convenient method is to use a diagnostic tool - most OBD tools will work fine.
The best method is to scope the output. The most convenient method is to use a diagnostic tool - most OBD tools will work fine.
conaero Forum Owner Messages 34,639 Sep 7, 2017 #3 As Voicy says there are several tools out there. What you want to see is an up and down chart for the Llambdas. If it flatlined then it's usually duff.
As Voicy says there are several tools out there. What you want to see is an up and down chart for the Llambdas. If it flatlined then it's usually duff.
voicey Member Messages 660 Sep 8, 2017 #5 Only the upstream sensor should be switching - if the downstream one is also switching then you have a problem.
Only the upstream sensor should be switching - if the downstream one is also switching then you have a problem.
