Tuning Help Via UberdataCouple of quick questions . . . . .

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10-27-2005, 02:17 AM

#11

genxperformance

1.0 BAR

Thread Starter

Join Date: Jun 2003

Posts: 318

Re: Tuning Help Via UberdataCouple of quick questions . . . . .

Quote:

Originally Posted by 95RedEX

Quote:

Originally Posted by genxperformance

Quote:

Originally Posted by 95RedEX

I'm lazy and used Juka's excel sheet thing. I think it's called EZ Fuel? I can't find the thread for it.

Part throttle is like the minimum pressure you can put on the gas to make the car move.

what does that sheet entail? I am going to re-tune the entire thing. Better to just start off with my own stuff. Just need to find time. New clutch goes in this weekend, so after that I should be ready to tune for sure.

So to remove the Check engine from the 02 sensor you remove the 02 heater,and to run the car totally off the chip you enable or disable closed loop? I keep getting those two things mixed up.

You should be able to find it on the Uberdata forum. Basically, it has 11 or 12 sheets. You datalog in as many sessions as you want and type the results in (first 10 pages). The 11th page takes the averages of those AFRs and compares it to your existing map. It will mathmatically come up with a new map for your desired AFRs at various PSIs. It's not fullproof, but it's a really quick starting point. From there, it's fine tuning.

As far as your other question, if you have a chip in your ECU, it's going to read that unless you cut J1 (I think). That will return it to stock. You want to check the "O2 heater Disable" & "Closed Loop Disable" boxes if you're running a WBO2. If you plan on using your stock O2 sensor, you're probably wasting your time.

sweet . . . that always mixed me up . . . . I checked those boxes the other day and tried to start the car and it ran kinda shitty, but I was on my way to work so I didn't have time I just tossed back in the running chip, but I need to totally re-tune the car starting with my own basemap. I am currently ujsing my PLX wideband so after my clutch install this weekend I will be re-tuning, and hopefully I will have datalogging working by then.

So when accelerating in 2nd and 3rd to tune vacuum I gota do so slowly ehh? I wish I had more time to do this everyday, but I don't.

10-27-2005, 08:29 AM

#12

95RedEX

1.5 BAR

Join Date: Aug 2004

Posts: 949

Re: Tuning Help Via UberdataCouple of quick questions . . . . .

Quote:

Originally Posted by genxperformance

When I tuned, I did my idle first and did a terrible job of it.

Then I did the Lo map (non Vtec). 2nd or 3rd gear driving, always trying to be positive on the gas but as light as possible. If you let up, your A/Fs drop and give you crap numbers. I did a bunch of runs like this, and then some WOT with V-Tec disabled, trying to fill out as much of the datalogging map as I could... up to around 5,500 RPMs.

Then I set V-Tec for something low, like 4,000 RPM. and did some higher RPM part. throttle driving and then some WOT pulls. Again, tried to fill out as much of the map as I could. Plug the Lo numbers into the ------sheet to get your Lo map, and then the Hi numbers to get a Hi map.

Copy the maps back to Uberdata and then look at your fuel & ignition curves and try to fix up anything that looks wonky. Your lines should not cross. That's the basics of what I've done.