new with VCM AFR scan

[Garrett]

I new with Hpt

The vehicule is a GMC sierra 2000 5.3L


I log the AFR,but i'm not able to see it in in the map

here is the log that I see



thanks for your help

I take a loook at the Narrowband voltage and there are value (mV) everywhere in the maps

but not the wideband log

[Bill@HPTuners]

It appears that its logging just fine but your probably not logging manifold absolute pressure(sae) in your table display which is why nots not showing up correctly in your histogram.

[Garrett]

It appears that its logging just fine but your probably not logging manifold absolute pressure(sae) in your table display which is why nots not showing up correctly in your histogram.

the MAP and MAF are logging see it here







If find something the Y axis was in psi, but there is not boost on this vehicule. I set it to kpa and now I had the AFR tables chart

[Bill@HPTuners]

mind posting your scan then instead of screenshots?

[Garrett]

here is the data file

[Bill@HPTuners]

Try deleting your VCM Scanner.cfg file & using the default imp.cfg file in your scanner, because the log works just fine for me.

[Garrett]

Try deleting your VCM Scanner.cfg file & using the default imp.cfg file in your scanner, because the log works just fine for me.

why deleting it?

I think I undestand

I save my config, because I was thinking that the wideband input need to be save in the config

[Bill@HPTuners]

the VCM Scanner.cfg file will regenerate itself when you reopen the file, but if you've made any invalid custom PID's it will automatically delete them so your starting fresh. That way you can find out which ones are the problem very quickly.

[Garrett]

thanks alot for the fast help

[Bill@HPTuners]

if it still doesnt work the way you want it please post the VCM Scanner.cfg file so I can test it out on my pc. Also check your regional settings as shown here http://www.hptuners.com/forum/showthread.php?t=11826 as the wrong settings can cause all kinda issues.

[Garrett]

I live in canada, but my regional setting are on USA, it had some pass using last year with canada settings

now it's fine

[Garrett]

actually the AFR error % is not working

[Bill@HPTuners]

Its because your not logging commanded afr so the error has nothing to reference.

[Garrett]

Its because your not logging commanded afr so the error has nothing to reference.

it is possible to log the commanded afr?

the commanded AFR is done via the OEM o2 sensor I supposed

[Bill@HPTuners]

no the commanded afr is a PID you can log that tells you what your pcm's tables are commanding.

[Garrett]

so there is no way for me to see the % error

[Bill@HPTuners]

yes, if you log commanded afr in your table display.

[Garrett]

yes, if you log commanded afr in your table display.

table display = tables(chart)?

[Bill@HPTuners]

http://www.hptuners.com/help/vcm_sca...lays_table.htm the help file happens to be a great starting place

[Garrett]

http://www.hptuners.com/help/vcm_sca...lays_table.htm the help file happens to be a great starting place

thanks I finally found how to insert the AFR error