Sanity Check on Commanded AFR

[Kevin Doe]

Could someone look at my log and tell me if you think the commanded AFR makes sense. I'm setup for AutoVE right now, so I should be in OLSD mode.

I didn't expect the commanded AFR to be 14.68:1 with all the changes made in the autoVE tutorial, mainly the changes to the 3 or 4 rows in the open loop commanded EQ ratio table. Anyone care to take a quick look.

Most of the log is a highway cruise in 6th.

Thanks,
Kevin

[2002_z28_six_speed]

Just looks like the BENs are rich all over. But for the high load cells they aren't rich even though the BENs say they are. It should commanded richer AFR at high load so the BENs are misleading.

Post your commanded AFR in open loop table. It should of commanded 12.6 or so. Not 13 in the high load.

Only thing that makes me wonder is it shows you hit 30% tps max and it shows you hit 93 kPa. Seems like it should take more pedal pressure to have such low vacumn. Maybe you have a large cam though.

[Kevin Doe]

You are correct, I have a very large cam, MS4.

[Kevin Doe]

Can anyone look at this log and see if the commanded AFRs are what you would expect for a car setup in OLSD by following the procedure in the AutoVE tutorial.

I would be much appreciative.

[joecar]

For light throttle and the MAP range shown in the log, commanded AFR is probably ok, but it's hard to tell without more throttle range (log doesn't show enough load).

The idle (near the beginning of the log) shows a high MAP, you have an air leak of some kind.