Data logger for P01 and P59
Re: Data logger for P01 and P59
No they are both the from the same memory address, so both are likely AFR. I'll do some more digging to see what I can find.
I don't see any PID listed in that link. Can you point me directly to the post with PID info?
I don't see any PID listed in that link. Can you point me directly to the post with PID info?
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Re: Data logger for P01 and P59
I found EQ ratio. Was faster than I thought, but knowing that I was looking at AFR helped.
22FC22 should be EQ ratio
22FC22 should be EQ ratio
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Re: Data logger for P01 and P59
Good work! I'll test it out in a bit.
Yeah the PID list is kinda hidden: https://github.com/joukoy/UniversalPatcher
It's part of the XML_v3.2.zip file.
I converted into a simple spreadsheet to make viewing easier for me--attached.
It looks like the whole FC series is still unexplored.
Yeah the PID list is kinda hidden: https://github.com/joukoy/UniversalPatcher
It's part of the XML_v3.2.zip file.
I converted into a simple spreadsheet to make viewing easier for me--attached.
It looks like the whole FC series is still unexplored.
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- PidList.xlsx
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Re: Data logger for P01 and P59
It seems EQ ratio is working on my flex truck, just not sure of the formula yet. Also in fuel temp it seems byte b is where the info is located. Gonna mess with it more later today.
Re: Data logger for P01 and P59
Here is the equation for EQR.
[2 byte data] / 1024.
14.7 / EQR if you want it in gas scale.
Here's an example during engine warmup
[2 byte data] / 1024.
14.7 / EQR if you want it in gas scale.
Here's an example during engine warmup
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Re: Data logger for P01 and P59
What app are you using in that screenshot? Trying to set eqr up in torque pro and not having much luck. Have you messed with fuel temps formula?
Re: Data logger for P01 and P59
Racechrono Pro, track day app. I just prefer the interface most for testing.
For torque use Auto for OBD header and don't include the 01 at the end of the PID.
I have fuel temp saved but haven't messed with equation yet. I noticed it was a 2 byte param, but I also notice that in EFI Live it's only a single byte/channel ... So you you be right about it only being the B byte. I'll give it a go soon. With it being so hot I can't get a good temp variance to really test it yet.
For torque use Auto for OBD header and don't include the 01 at the end of the PID.
I have fuel temp saved but haven't messed with equation yet. I noticed it was a 2 byte param, but I also notice that in EFI Live it's only a single byte/channel ... So you you be right about it only being the B byte. I'll give it a go soon. With it being so hot I can't get a good temp variance to really test it yet.
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Re: Data logger for P01 and P59
Aaron, Have you had much luck with any PIDs? I have tried many different formulas for ASpark and fuel temp, but can't really come up with anything that seems to work right. They're definitely both 2 bytes.
Seems fuel temp should be ((a*255)+b)-40
ASpark possibly (A)/40.96)+B
As I understand it ASpark should be a value 0-1 to show which way it's leaning towards high octane vs low octane tables. Which at times I get mostly 0.4, but if I get some KR it moves and sometimes shows xxx.4. Not sure why it would be showing in the hundreds.
On EQ ratio I get a steady 1.1 with 2.7% ethanol fuel. But, when I hit PE it drops to 0.9. I was thinking it should be the opposite of lambda? May have the formula messed up.
Seems fuel temp should be ((a*255)+b)-40
ASpark possibly (A)/40.96)+B
As I understand it ASpark should be a value 0-1 to show which way it's leaning towards high octane vs low octane tables. Which at times I get mostly 0.4, but if I get some KR it moves and sometimes shows xxx.4. Not sure why it would be showing in the hundreds.
On EQ ratio I get a steady 1.1 with 2.7% ethanol fuel. But, when I hit PE it drops to 0.9. I was thinking it should be the opposite of lambda? May have the formula messed up.
Re: Data logger for P01 and P59
I've been slacking on the fuel temp and other new ones.
Yeah that should be the correct equation for EQ ratio.
Should be a steady 1.0 in closed loop regardless of ethanol content, unless you're specially targeting richer and running open loop all the time. Mine seems to be working correctly just based on a quick test idling.
Yeah that should be the correct equation for EQ ratio.
Should be a steady 1.0 in closed loop regardless of ethanol content, unless you're specially targeting richer and running open loop all the time. Mine seems to be working correctly just based on a quick test idling.
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Re: Data logger for P01 and P59
aaronc7, I saw you post on the race chrono forums about supportin VPW stuff for C5s. I made the post about gettign the brake pressure working. I should add the PIDs i've got for steering angle sensor and brake pressure.