AutoVE am I doint something wrong?

[hhorton]

I've been trying the AutoVE and no matter what I do, I all of my data is collected in a few cells. I can't seem to spread it out in the MAP. Attached are the tun and the first log I ran. Do I have something wrong in my tun?? I'm using an FJO WB.

[mr.prick]

It looks fairly well spread out to me.
Check the map properties to see if the PID units match (psi/kPa)

[hhorton]

map matches tun.. 2 to 15.2 in the col labels. I figured they were too clustered because almost all of my values are in the 15.2 column but range with the RPMs. I was expecting to see more values in the other columns.

[hhorton]

ok, I think i figured out why my logs look so wrong to me. When I opened the Main VE table and cut/paisted the lable values into my map, what I got was:

,2.2,2.9,3.6,4.4,5.1,5.8,6.5,7.3,8.0,8.7,9.4,10.2, 10.9,11.6,12.3,13.1,13.8,14.5,15.2

If I look at the instructions, the labels should be:

,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85,90,9 5,100,105

So whats the deal??? How do I get the tun file to present the VE table with the proper labels?


Oh, never mind. Found it! :)

[mr.prick]

That tables properties are set to imperial.
You can change it to metric or you can select imperial units for the PID.
FYI you can mix and match imperial and metric most tables.

Example: {B3605} is linked with MAP and ECT
MAP can be metric (kPa) and ECT can be imperial (F).
Your map in the scan tool needs to match the table in the tune tool.

[hhorton]

Thanks, I think I have it set where it'll work now. Mains kPa and backup is PSI but at least tun and scan tables match each other.

Do you have any magic recommendations to speed up cell hits? For instance, should I find some nice clear road where I can slowly build up speed and RPM that cover the range from 800 to 4k? I've done a couple of short drives and the cell hit covers allot of the map, but by comparison, only a small amount of the map has adequate hits > 50 so I can use the data.

Thanks for your help.

[joecar]

Reduce the empty cell count to say 25.

[Happy Jim]

Thanks, I think I have it set where it'll work now. Mains kPa and backup is PSI but at least tun and scan tables match each other.

Do you have any magic recommendations to speed up cell hits? For instance, should I find some nice clear road where I can slowly build up speed and RPM that cover the range from 800 to 4k? I've done a couple of short drives and the cell hit covers allot of the map, but by comparison, only a small amount of the map has adequate hits > 50 so I can use the data.

Thanks for your help.

I tended to do 1K RPM bands each day, ie I would concentrate on the 2-3K band and hold various levels of load on the Brake for as long as my mechanically sympathetic conscious would let me, I only did 1 band per day in order to give my discs/pads a bit of a breather :hihi: (and a nice long stretch of road helps a lot)

Rgds

Jim

[SSpdDmon]

Word to the wise...focus on the logged data around the middle of the VE cell. The data point you are entering is for the intersection of a given MAP and RPM. Filtering out the stuff inbetween will help you find the more accurate numbers faster.

In other words....if you capture a whole bunch of data in the areas where the PCM is interpolating between 4 cells and you use the averages as your correction factor, it's only going to create a headache for you when you try to dial it in further. Basically, 35kPa @ 2400RPM (centered) is a much better data point than 47kPa @ 3000RPM (not centered).

[5.7ute]

Word to the wise...focus on the logged data around the middle of the VE cell. The data point you are entering is for the intersection of a given MAP and RPM. Filtering out the stuff inbetween will help you find the more accurate numbers faster.

In other words....if you capture a whole bunch of data in the areas where the PCM is interpolating between 4 cells and you use the averages as your correction factor, it's only going to create a headache for you when you try to dial it in further. Basically, 35kPa @ 2400RPM (centered) is a much better data point than 47kPa @ 3000RPM (not centered).

I agree.
When I do autove now I set the cruise control to the rpm, eg 2000rpm, 2400rpm etc. While you still get a swing of a few rpm it keeps the bulk in the center of the cell. Then I filter out the transients & also within 1 kpa of each map point. It doesnt leave a lot of data but what is left is accurate.

[hhorton]

boy, tuning the VE table is a pain. Thanks for the responses. I think I have a better idea of how to get more accurate results. I also thing I'm going to be much better off if I take the car out to a highway and get off of the city streets. This will eliminate the stop and go traffic while I log.

[SSpdDmon]

boy, tuning the VE table is a pain. Thanks for the responses. I think I have a better idea of how to get more accurate results. I also thing I'm going to be much better off if I take the car out to a highway and get off of the city streets. This will eliminate the stop and go traffic while I log.
Best way I've found is to find some hilly terrain and set the cruise like mentioned by 5.7ute. Cruise will hold RPM at a steady level and the hills will cycle you through different manifold pressures. ;)

[hhorton]

Best way I've found is to find some hilly terrain and set the cruise like mentioned by 5.7ute. Cruise will hold RPM at a steady level and the hills will cycle you through different manifold pressures. ;)

LOL, not too many hills here in north texas. Unless you count the Figh Five overpass that connects loop 635 and Hwy 75. :hihi: