Help with ZT-2 Wide Band

[trona]

Hey There
New to EFIlive tuning. My current setup includes a ZT-2 wide band that only has an analog non linear wide band output. My ZT-2 predates the linear ZT-2(rev11).
Can this signal be mapped in either scan V7.5 or V8?
And How?

Thanks so much
D

[trona]

Let me try something else. Here is the chart can some one help with how to transpose this table in to a PID?
Voltage 0.15 0.31 0.46 0.62 0.78 0.93 1.09 1.24 1.4 1.56 1.71 1.87 2.02 2.18
AFR 9.7 9.9 10.1 10.3 10.5 10.7 11.0 11.4 11.7 12.1 12.4 12.8 13.2 13.7
Voltage 2.34 2.5 2.65 2.80 2.96 3 3.12 3.27
AFR 14.2 14.7 15.6 16.9 18.5 18.8 19.9 21.2
Thanks dave

[joecar]

I'll see if an existing calc pid maps this already, otherwise I'll make you a new one.

[trona]

I'll see if an existing calc pid maps this already, otherwise I'll make you a new one.

Look forward to seeing it
Thanks
D

[joecar]

This is your calc_pids.txt edited a little, see attached...

( lambda is already defined, so I used this and deleted LAMBDA; wideband lambda calculation should be done earlier than the BEN pid, so it should have a lower CLC number)


I kept the lambda expression "{EXT.AD1}*0.136+0.68" even tho it does not match the volt:afr data you posted above.

The ZT-2 pdf says AFR= 2*V + 9.6 which with stoich 14.7 AFR (from their pdf) gives lambda = 0.136*V + 0.653 which is close to what you had.

[statesman]

Hi Joe,

Can I point out that trona specified "non linear wide band output" in the original post.

[trona]

Hi Joe,

Can I point out that trona specified "non linear wide band output" in the original post.
I was wondering that myself and in that case would you need to map all the voltages instead of a formula?
Thanks
Dave

[trona]

Thanks for the file.
I am new to obd11 scanning and I am still struggling how to identify the WB in the list of PID's
I keep you posted when I figure it out
dave

[trona]

Just Following up on ZT-2 PID
I was successful with enabling the WB using a serial WB connection to the V2. The hardware in my case was ZT2 WB controller, Opto Insulator - (protect the V2), gender changer, null modem, and V2 serial cable.
Thanks Joecar for the modified calc-pids file now were on to VE tuning

[joecar]

Hi Joe,

Can I point out that trona specified "non linear wide band output" in the original post.Oh, I failed to notice that, thanks.

[joecar]

I was wondering that myself and in that case would you need to map all the voltages instead of a formula?
Thanks
DaveIf there's no formula/equation, then the x/y value pairs can be put into a "lookup" table.

[statesman]

If there's no formula/equation, then the x/y value pairs can be put into a "lookup" table.

Is that done in the calc.pids text file or is it done in the scanner software?

[joecar]

Hi Joe,

Can I point out that trona specified "non linear wide band output" in the original post.Oh, I failed to notice that, thanks.