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[Moeed]

Not saying autos dont have a BIG disadvantage but I dont understand how it would cause the a/f ratio to change like that from one gear to the next...?

Plenty of factors. The main ones being maf voltage and the load in a gear.

 

[bazooka joe]

Plenty of factors. The main ones being maf voltage and the load in a gear.

yup, what he said (more eloqently put)

 

[Crazee D]

is NA one having fun yet?

I sent a few more datalogs to Nick.
I had to un-install and re-install MPI v2.8.15 and restore security key
Then re-download map from nick cuz I did not notice earlier that it had decided to save as a .txt file.
Just to be sure. And move it to the C:/program files/MPI TUNER folder

Then I hooked up to USB, turn car to 'on', start MPI Tuner software, then go online.
Go to File / Load Tune Map and choose my NA fuel map.
Then according to Nick I:
1. File / Save as and name file
2. go to Tools and do download and upload to MPI
This didn't make too much sense to me.
1. Save as what? I just loaded that file. Should I make another new file name?
2. Which is first upload or download and why would i want to do both?

Any ideas?

So then I started her up and took a new datalog to send to Nick.
I was able to do the playback in the car when I was hooked up but not later on offline.
Thanks to Tony's explanation I was able to change to another port in use and playback would work offline.

Maps are zeroed out accept for -5 in first two columns (10 and 19% load) on the analog map.
I hope I do not hear any more popping / misfiring.
If it is misfiring, why am I not getting a CEL?
I am attaching my .RAW playback file as a .TXT just change the extension back to .RAW after downloading.

 

[Crazee D]

My AFR stays pegged at 15
I see Analog Out is reading 0.04 and I know tim sez it should be at 2.08v
which column do i need the cursor in to adjust?

Also need recomendations on what values i need to show in display set up and which one are best to show on graph

 

[Crazee D]

Ok took new datalogs today. No popping so I think the correct fuel map is now loaded.
AFR is at 11.6, is that about right?

 

[terbow]

your n/a right? that seems a wee bit rich to me. thats turbo territory. I would think 13.0:1 would give you better gains. but id verify.

 

[Crazee D]

NA all the way....for now, and probably for a while....

I also have some readings that are NOT fluctuating like Eng temp and...lemme check what else...

 

[bazooka joe]

NA all the way....for now, and probably for a while....

I also have some readings that are NOT fluctuating like Eng temp and...lemme check what else...

you should be between 14 & 15 crusing around...you can go as rich as 13 at wo

 

[Crazee D]

so 11.6 is really rich?

 

[orng1]

At WOT? For an N/A car yes, for a turbo car no.

 

[bazooka joe]

At WOT? For an N/A car yes, for a turbo car no.

what he said....you wanna be running between 14-15 crusing around...you might go rich (13) at full throttle, but not driving around town!

 

[Crazee D]

So basically theres a lot of extra fuel I can pull out, but should i tune ignition first?
what increments add/retard should i start with and where on the ign map?

and any ideas why i have no reading for AMP Input V and Engine Temp V?

Engine temp is stuck at 127?

 

[Crazee D]

suggestions?

 

[mspHtown]

give nick a call on the phone and he is extremely helpful.

 

[Kooldino]

So basically theres a lot of extra fuel I can pull out, but should i tune ignition first?
what increments add/retard should i start with and where on the ign map?

and any ideas why i have no reading for AMP Input V and Engine Temp V?

Engine temp is stuck at 127?

Do you have anything wired into those wires? Is your MAF wired into your car?

 

[xelderx]

so 11.6 is really rich?

That is about where my car ended up at WOT in open loop with MPI. In open loop the MPI has no control over the fuel or so it seems.

 

[Crazee D]

No MAF, just O2 tuning for me.
I'm pretty sure we did not tap the MAF signal.

If I understand correctly, at WOT (or some max load level?) open loop is engaged and no tuning maps are in effect, just the ECU figuring out everything on its own.

In closed loop, the MPI is using its maps to trim fuel/timing.

Right?

 

[xelderx]

If I understand correctly, at WOT (or some max load level?) open loop is engaged and no tuning maps are in effect, just the ECU figuring out everything on its own.

In closed loop, the MPI is using its maps to trim fuel/timing.

Right?

That is what I understand. What we need to find out is how much of the MPI's graph is useless to us. At what loads/RPMs does the ECU switch to open loop? We should be able to map it out with the graphs in the MPI and that would give us a good idea about how effective the MPI will be since it will only be useful for everything under the sections of the MPI graph where the ECU is in open loop.

 

[igdrasil]

so 11.6 is really rich?

WOT 11.6 is a tad rich for N/A but you never know, go dyno it, it if gives more power on 11.6 than 12.5, then its good to go.

But for WOT, I recommend 12.5:1

 

[Kooldino]

No MAF, just O2 tuning for me.
I'm pretty sure we did not tap the MAF signal.

That's why you don't have anything in the AMP column. Normally you want a 5v input into there. I guess you're not running any load input at all. Fun.

If I understand correctly, at WOT (or some max load level?) open loop is engaged and no tuning maps are in effect, just the ECU figuring out everything on its own.

In closed loop, the MPI is using its maps to trim fuel/timing.

Right?

Right.