Feature Request thread ( make sticky )

This section is dedicated to discussion of DTA engine control units such as the DTA E48 EXP, P8 Pro, DTA S40, S60, S80, and S100, as well as all things ECU related.
katana
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Re: Feature Request thread ( make sticky )

Post 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!
troy
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Re: Feature Request thread ( make sticky )

Post 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.
Rob Stevens
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Re: Feature Request thread ( make sticky )

Post by Rob Stevens »

I run them with the fuel pump
troy
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Re: Feature Request thread ( make sticky )

Post 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
katana
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Re: Feature Request thread ( make sticky )

Post 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!
Alex DTA
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Re: Feature Request thread ( make sticky )

Post 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.
troy
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Re: Feature Request thread ( make sticky )

Post 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?
Alex DTA
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Re: Feature Request thread ( make sticky )

Post by Alex DTA »

I have no firm date on that.
TRN
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Re: Feature Request thread ( make sticky )

Post by TRN »

Is it possible to add the MAP2 switch status to the ecu switches in the can stream?
Alex DTA
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Re: Feature Request thread ( make sticky )

Post by Alex DTA »

Maybe, but not any time soon. There is space for that.
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