Wideband O2 Sensor Readings

[Viper]

Hi all tech gurus...

Got a wideband sensor cum meter installed lately (using Bosch LSU 4.9 sensor) and realised a weird behaviour thus seeking some clarifications.

I observed that under certain load conditions eg. when I am cruising at say 80km/h, and releases my throttle fully, the reading will swing to say 20.00 (max reading on left end) which is lean for a few seconds before it swings back into the more normal ranges eg. 13.1 - 14.8 range.

Is this normal?

[UltraBear]

Hi all tech gurus...

Got a wideband sensor cum meter installed lately (using Bosch LSU 4.9 sensor) and realised a weird behaviour thus seeking some clarifications.

I observed that under certain load conditions eg. when I am cruising at say 80km/h, and releases my throttle fully, the reading will swing to say 20.00 (max reading on left end) which is lean for a few seconds before it swings back into the more normal ranges eg. 13.1 - 14.8 range.

Is this normal?

==> yes... should only happen when you let go of your throttle... usually happens when you're doing part or full throttle... should not happen during gentle driving....

[Viper]

Hi bro,

Thanks for the info.. Phew... Was worrying something was wrong.

Yup, it only happen when I abruptly let go off the throttle (example when reached a certain speed and a let go of the throttle and roll) and it will drop for a few seconds before it swing back to usual range.. Normal driving won't happen...

Cheers.

[UltraBear]

Hi bro,

Thanks for the info.. Phew... Was worrying something was wrong.

Yup, it only happen when I abruptly let go off the throttle (example when reached a certain speed and a let go of the throttle and roll) and it will drop for a few seconds before it swing back to usual range.. Normal driving won't happen...

Cheers.

==> :-) ... which brand of the WB are you using on your car?

[Viper]

Mine is GlowShift which is black with blue LED digital display.

It comes with a controller box and optional data logging module. Calibration also done via this box.