NTK L2H2 (LZA-09-E1)

[Laci]

I would like to inquire how much time need the wideband lambda sensor to give signal after engine starting?
Type: NTK L2H2 (LZA-09-E1) connected directly to S6GP ecu (according to manual)

Thank you for your helping in advanced.

Laci.

[pavlo]

Have you assigned and configured the heater output? The output voltage (set in Output Functions->Lambda Heaters) needs to be 10.7v throughout.

There is a timer for full power heater which when on (for say 20 seconds) will distort the lambda reading to begin with, but you should get a good reading within 30seconds or so with a cold start, and less with a hot restart.

[Laci]

Have you assigned and configured the heater output? The output voltage (set in Output Functions->Lambda Heaters) needs to be 10.7v throughout.

There is a timer for full power heater which when on (for say 20 seconds) will distort the lambda reading to begin with, but you should get a good reading within 30seconds or so with a cold start, and less with a hot restart.

Yes I have configurated the heat output (FUEL 8 output is the Lambda Heaters). And I have configureted the 10.7V heaters voltage also. Even so there is no Lambda signal after 2-3 minutes after the start of the engine.
If I interrupt the connection of Lambda sensor I can measure only 7.9V output voltage on Fuel 8.
The fix 12V power supply of Lambda sensor is OK.
The linarisation of Lambda sensor is also OK.
And the sonda is a new one.

Thank you andvanced for your helping.

[pavlo]

You will measure around 8v from fuel 8 unless it is trying to heat the sensor. To get 10.7volts you would need Vbat-Vfuel8 so you would expect 1.3v on average at Fuel 8 if the vbatt was 12volts.

I assume you have heater +ve connected to Vbatt?

Do not use pin 12 the 12v output from the ecu for anything. It was connected to a low current power supply on early ECUs but now is not connected at all.

And just to be sure you have used LAMV, LAMI and LAMGND inputs for the Grey, white and black wires on the Lambda sensor?

Have you also configuted the lambda sensor input configuration to be Uego Lambda and the Sensor type to be UEGO Wideband?

[Laci]

I checked again and set correctly the all settings of lambda sensor and now it works perfectly.
Thank you for your helping.