how to set afr error histogram?

[askkmb]

I was trying to use the afr error table(#7 in histogram) and as soon as i start scanning it shows it is an unsupported parameter. How can i acomplish to have that table working?

[zo6]

I am runing a 2.5 par map sensor with SD tune only and i have #7 histogram unsupported also
I create one and it should exactly match the VE Normal-IMRC Open i have but the problem is that i can't match my #7 histogram with the correct VE table i have !
What i should do to create a histogram that match my VE Normal-IMRC Open.

[askkmb]

Anyone?

[Bill@HPTuners]

http://www.hptuners.com/forum/showth...ead-this-first

[askkmb]

Here you go!

[Bill@HPTuners]

config file is only part of the picture, there is no way to recreate a histogram without the scanner log. Additionally the config file does not include any custom pid information so in the future if you need help with custom pids you'd need to provide the other information in the link I posted so that you'd include the correct information.

[5_Liter_Eater]

Any time you get unsupported parameter its because you don't have the values inthe table view that are required for the histogram to work. So for a histogram that plots AFR error against the MAF table you need: commanded AFR, Actual AFR and MAF Hz being logged in that config. For AFR Error against the VE table you need commanded and actual AFR, RPM and MAP or dynamic airflow.

[Bill@HPTuners]

Bill, it could also be that the histogram plot isn't available as well, for instance an E38 pcm doesn't have a primary VE table so any histograms that are predefined using a plot for a primary ve wouldn't work. The original poster hasn't even divulged what year/make/model vehicle he's working on. I'm not a big fan of guessing. In any event a scanner log will actually show what year/make/model vehicle he's scanning and would answer most of those questions but he has yet to post it.

[askkmb]

It is an 03 Silverado SS. Ill post a log file once i get home from work. So do i have to connect my wideband to hp tuners in order to get it working?

[Bill@HPTuners]

It is an 03 Silverado SS. Ill post a log file once i get home from work. So do i have to connect my wideband to hp tuners in order to get it working?

Yes.

[askkmb]

Okay thats what i needed to know. I thought that it worked without a wideband but ill connect my wideband to it and then hopefully i can get it to work. Im still learning so thats why i sometimes have stupid questions.