Bench testing a lambda sensor??

[Cookson]

How is this done?

A mechanic friend of mine put one in a vice, plugged a multimeter on the terminals and then heated the probe up with a blowtorch.

He said that depending on the values shown on the multimeter would confirm if they were buggered or not.

Is this true??

 

[Dan519]

the resistance of the heater circuit can be taken as an indication of function.

 

[Cookson]

Cool. So I am not being blagged then, lol

 

[Dan519]

it's a LOT easier to just plug in proper diagnostics and look at a signal trace

 

[Cookson]

Well, this is the issue.

I put a decat on. 2 days later, the light came on. I took decat off and plugged it in on normal code reader. Says fault with Cat, refuses to turn light off.

Put it on clip...... clip doesnt even talk to the car, wont recognise it.

So light is still on, and both lambdas are working

 

[Fred@BTM]

unplug 2nd sensor simples

 

[Cookson]

Wont that still leave the light on though?

Or do you mean run it out of the zorst?

 

[Fred@BTM]

try it and find out!

 

[Cookson]

LOL.

I still dont understand why Clip wouldnt "speak to" my car?

 

[Dan519]

LOL.

I still dont understand why Clip wouldnt "speak to" my car?

Clip is a c**t for that. Reboot the comp and try again

 

[Lal B3N]

LOL.

I still dont understand why Clip wouldnt "speak to" my car?

Did that with mine a couple of times, then 3rd time lucky it just started working as normal.

I still have a cat in my exhaust, but mine has killed lambda number 2 again for some reason The last one was only fitted 10k ago.

 

[Djw John]

I've run with the second lambda connected but reading fresh air for about 18 months now and the light has never come on. When it was in the decat the car ran like shite when cold, to the point it was almost undriveable.

 

[mr.pink87]

Second lambda sensor will not affect running. It's only task is to monitor the catalytic converter efficiency.