DIYEFI.org Forum

I am looking at your product manual,

"Response Time typical 20.00 ms"

You have to tell me AEM's definition of "typical".

Also you are probably violating the 6-9ma limit into and out of the pump cell as outlined in the Bosch datasheet to get your artificial results.

Also if you reference 20ms in your advertisement and or product manual/pages, you should remove it. It is dishonest.

If during a normal real world applications the end customer will never see 20ms response times, then why even talk about 20ms? The end customer will see response times an order of magnitude slower in a real world installation, 20 ms it is not even in the realm of honesty. I completely disagree and ...

If during a normal real world applications the end customer will never see 20ms response times, then why even talk about 20ms? The end customer will see response times an order of magnitude slower in a real world installation, 20 ms it is not even in the realm of honesty.

We probably have a different version of the 4.9 datasheet. You do not install a wideband sensor such that the opening on the tip is coincident with the exhaust stream. To do so means that the sensor will constantly be subjected to much higher exhaust pressure than if the sensor was installed normall...

In the Bosch 4.9 datasheet section 4.3.1

I had a closer look at the picture of the your testing rig, initially I thought it was only a partial picture because a certain part which I always assume necessary was not there, however it is clear to me now that the picture you posted is the complete testing rig. You have an issue with your testi...

The quote of 50-75ms is not particular to PID control topology. Basically you run your controller until you reach some kind of steady state where readings are stable, you scope the feedback line (black line) and you observe changes on that line in response to the a pulse of exhaust gas. Based on the...

Something seems off with the stated response times. From my own work testing the dynamic response times of the just the Bosch LSU 4.9 sensor 17025 model, it is in the order or 50-75ms. It takes approximately 50-75ms for the the feedback line on a 4.9, black wire, to show change when AFRs changes sud...