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Re: Feature Request thread ( make sticky )

Posted: Mon Oct 29, 2018 11:38 am
by katana
If you read most of the Wideband Lambda controllers they ask that the controller be wired to ign. live so the sensor is pre-heated before starting - they should not be off if the engine is running - it shortens their life markedly!

Re: Feature Request thread ( make sticky )

Posted: Mon Oct 29, 2018 2:02 pm
by troy
katana wrote:If you read most of the Wideband Lambda controllers they ask that the controller be wired to ign. live so the sensor is pre-heated before starting - they should not be off if the engine is running - it shortens their life markedly!
I may be wrong...

Yes they should be on while engine is running, or like you say will shorten sensor life. How ever preheating them and running them while engine is not running is also bad, especially on engine cold starts. If the sensor is pre heated first, and then engine is started (especially cold start), condensation in the engine / exhaust can enter the hot sensor and crack the ceramic sensing element and destroy the sensor.

Re: Feature Request thread ( make sticky )

Posted: Tue Oct 30, 2018 4:19 am
by Rob Stevens
I run them with the fuel pump

Re: Feature Request thread ( make sticky )

Posted: Thu Jun 13, 2019 3:38 am
by troy
stevieturbo wrote:Both their CAN lambda units are ridiculously expensive though.

And the Link unit requires data to be sent to the device before it will power the sensor etc and start sending data back. ie it will not operate if the engine is not running.

But yes, lambda onboard, or via serial/CAN properly rather than an analogue input is a better option.

The spartan ADV 3 could be a cheap CAN bus lambda controller.

https://www.14point7.com/products/spartan-3-adv

Re: Feature Request thread ( make sticky )

Posted: Thu Jun 13, 2019 6:43 am
by katana
troy wrote: Yes they should be on while engine is running, or like you say will shorten sensor life. How ever preheating them and running them while engine is not running is also bad, especially on engine cold starts. If the sensor is pre heated first, and then engine is started (especially cold start), condensation in the engine / exhaust can enter the hot sensor and crack the ceramic sensing element and destroy the sensor.
But surely then they will be wet / moist whenever you turn them on? Wideband sensors are heated continuously to ensure the device is stable and ensure accuracy. Likewise heated narrowband are heated continuously although not regulated due to straight battery / system voltage!

Re: Feature Request thread ( make sticky )

Posted: Thu Jun 13, 2019 7:14 am
by Alex DTA
katana wrote:
troy wrote: Yes they should be on while engine is running, or like you say will shorten sensor life. How ever preheating them and running them while engine is not running is also bad, especially on engine cold starts. If the sensor is pre heated first, and then engine is started (especially cold start), condensation in the engine / exhaust can enter the hot sensor and crack the ceramic sensing element and destroy the sensor.
But surely then they will be wet / moist whenever you turn them on?
They will be, but when they're warmed up, that will evaporate.
It's the cold water upstream of the sensor that then lands on the now hot ceramic element, which can crack it.

Re: Feature Request thread ( make sticky )

Posted: Wed Jun 19, 2019 3:56 pm
by troy
Alex DTA wrote:
katana wrote:
troy wrote: Yes they should be on while engine is running, or like you say will shorten sensor life. How ever preheating them and running them while engine is not running is also bad, especially on engine cold starts. If the sensor is pre heated first, and then engine is started (especially cold start), condensation in the engine / exhaust can enter the hot sensor and crack the ceramic sensing element and destroy the sensor.
But surely then they will be wet / moist whenever you turn them on?
They will be, but when they're warmed up, that will evaporate.
It's the cold water upstream of the sensor that then lands on the now hot ceramic element, which can crack it.

Alex, im making a new loom for my car, would like to go to CAN lambda, most likely the spartan one. I know when it was brought up earlier you said it was on the enhancements list, any idea of when that could be?

Re: Feature Request thread ( make sticky )

Posted: Thu Jun 20, 2019 3:41 am
by Alex DTA
I have no firm date on that.

Re: Feature Request thread ( make sticky )

Posted: Tue Feb 04, 2020 3:55 pm
by TRN
Is it possible to add the MAP2 switch status to the ecu switches in the can stream?

Re: Feature Request thread ( make sticky )

Posted: Wed Feb 05, 2020 3:51 am
by Alex DTA
Maybe, but not any time soon. There is space for that.