comport w02 error

[dags]

Im using techedge w02 new sensor and calibration has been done, I have tried with both analog and comport connections but getting a massive error between what techedge display and what the v2 and dashboard show.The dashboard shows the lambda at .613 or 9.04 afr while the techedge display shows 11.0 afr.If I tune to v2 mixtures a extremely lean.Dose the a/d port cal affect the comp port output.V2 firmware is 2.7.22.V7.5.7 [180 build].The techedge display is showing slightly richer than the engine 02 sensors.

[joecar]

Can you post pics dashboard.

[dags]

12381

[joecar]

What do WO2LAM1, WO2EQR1, WO2AFR1 show when you're in Closed Loop...?

And what does the analog AFR show...?

[joecar]

BTW: your commanded fuel EQIVRATIO is way lean at 0.74.

[dags]

I'll log those and get back to you .Thanks

[dags]

12389
this is a stoich reading using another w02 shows the error using the V2

[joecar]

The picture in post #7 shows WO2EQR1=1.246, WO2LAM1 0.802, WO2AFR1=11.78;

sanity checks:
1.246 * 0.802 = 1.00
1.246 * 11.78 = 14.68 (stoich)

The sanity checks are good, so the serial EQR/LAM/AFR are working.


Wideband behaviour is different from pic in post #3 to pic in post #7.

[dags]

Should the dash w02AFR not be showing 14.68 and w02lambda 1?

[joecar]

I don't follow what you're saying... :Eyecrazy:

your pic shows the dash showing WO2AFR1 11.78 (which matches WO2LAM1 0.802 and WO2EQR1 1.246).

Post your log file.

[dags]

What I was saying is I had a difference between what the dashboard was displaying and what the 02A display was showing ie techedge was showing 14.7 AFR dashboard was showing 12.5 AFR.
I have since changed to a techedge 3B1 and now have the similar reading on both or with in .2 difference.
It appears there is conflict between 02A unit and v2.
Thanks for your help

[joecar]

Ok no worries, glad you got it sorted out. :cheers:


I will advise people to run the 3B1 over the 02A.