AFC-SplitSecond PSC1 Map Library

[Maxx Mazda]

Anyone know if the AFC works on the P5 ECU? I'm running a SPOOL / custom turbo setup on my P5, and I can'twait to get this AFC... I have some 440cc injectors laying around, so I'll use those. I currently have a Vortech FMU that bumps the fuel pressure under boost. WIll I take it off or keep it with the AFC? And I'm guessing I'll remove my FM voltage clamp as well...

 

[SpeedBeaver]

I know this won't affect any of you English-US guys but we found a potential bug that can happen if you reprogram your AFC under a french Windows version.

By default, the convention to represent decimals is different (the comma is used instead of a dot to seperate the decimals). Based on that, all of the decimals are getting dropped having for effect of inputting faulty maps in the AFC.

Example: all 9.4, 9.8, etc. are only inputted as 9 (as if they were 9.0). Many people in Quebec have been experiencing problems after reflashing their AFC: their cars ran like s***.

Just wanted to give the heads up about this if anybody uses a Windows with non English-US numbers representation convetion.

 

[DSMConvert]

wow speed, nice catch! I didn't even think to test for non-us windows decimal compatability. Let me know what you guys have come up with to rectify the problem and I'll get right on it...

 

[SpeedBeaver]

wow speed, nice catch! I didn't even think to test for non-us windows decimal compatability. Let me know what you guys have come up with to rectify the problem and I'll get right on it...

It's pretty simple. You only have to change some settings in Window Control Panel -> Regional and Language Options, then in the Regional Options click on the "Customize" button if you don't have "English (United States)" there... you will be able to change the decimal symbol there. Just make sure the dot and not the comma is used. Click ok/apply and close.

I'm pretty sure saving a map after opening it with the wrong decimal format screw it up. Anybody who did this should re-download the map from this thread and reflash the AFC with it.


As you can see, fixing the problem isn't hard... finding the source of the cars weird behaviours was. Anyways, the french AFC owners are already warned. I just wanted to raise a flag about this issue. Just in case.

 

[low_psi]

Can anyone share their experience with using the Super vs FMIC map? All the changes appear near the closed->open loop transition so it seems the FMIC map is mostly to improve drivability.

I'll have a wideband on the car next week to do some fine tuning. I'll be sure to post the map.

 

[protegeric]

my advice would be, use the supermap. then if u get into some cold weather and something funny happens, try the FMIC map. but i think the super map should be fine. i was using it with a FMIC + CAI, etc. etc. and it was fine. it doesnt really get cold where i live though.

Can anyone share their experience with using the Super vs FMIC map? All the changes appear near the closed->open loop transition so it seems the FMIC map is mostly to improve drivability.

I'll have a wideband on the car next week to do some fine tuning. I'll be sure to post the map.

 

[tallrd]

I don't have the hard data in front of me (i.e numbers to compare), but the supermap was way better than the FMIC I had previously been running (and I hae a FMIC).

 

[low_psi]

Thanks for the input guys. I did a few 3rd gear pulls with a wideband a little bit ago and the supermap works pretty well. A/F held around 11.5 for one pull and 10.5 for the next. I'll be spending half a day or so on a dyno in the coming weeks to do some fine tuning at 8psi to nail down a steady tune.

I'm going to log thru the OBD@ port to see how fuel trims and timing respond to the tuning. I'm also going to do a pull on the stock PCM's tuning only. The results should be interesting.

As for the SuperMap vs. FMIC map, the only difference is midrange leaning on the FMIC map, where the open/closed loop transition occurs. I didn't notice any drastic A/F changes in those RPMs today though. It could have been a little leaner, but the SuperMap is working fine.

 

[SergMSP]

subbin...gettin AFC ver,1 soon...(ughdance)

 

[Earful]

I don't have the hard data in front of me (i.e numbers to compare), but the supermap was way better than the FMIC I had previously been running (and I hae a FMIC).

Ditto....but I have a TH SMIC....

 

[CustomMSP]

Hey guys,

I installed the AFC not too long ago and finally got a chance to play around with it. I loaded Kelly's map because I have a relocated MAF and some other flow improving mods. With the stock ECU my engine is hitting ~10:1 afrs from 4000-5400 RPM and 11.3-11.9 from 5500-6500 RPM. I know that the stock map leans out exactly at 5500 rpm, which shows on my car and makes sense. I'm only pushing 8-9 psi. With Kelly's map the AFRs started out at ~13.4 @ 4000 RPM and were dropping steadily towards redline. I only went up to about 5500 RPM and by then it was @ 12.2. I was afraid to continue past 5500, but I would guess that it would have leaned out by looking at the values in the map as the numbers in the cells were decreasing with rpm and boost. From what I understand a smaller number than 10 leans out the fuel correct? I haven't tried the stock super map as I'm afraid that it won't work well because my stock map run lean as is after 5500 rpm, unless the stock super map adds fuel in that rpm range?

Another thing I noticed is that the RPM in the software is off by about 1000 to my tach. Does anyone else show this difference?

Thanks.

 

[Fudgie]

Do you have a datalog you can post? Yes- 10 is unaltered signal. Less than 10= less fuel.

Hey guys,

I installed the AFC not too long ago and finally got a chance to play around with it. I loaded Kelly's map because I have a relocated MAF and some other flow improving mods. With the stock ECU my engine is hitting ~10:1 afrs from 4000-5400 RPM and 11.3-11.9 from 5500-6500 RPM. I know that the stock map leans out exactly at 5500 rpm, which shows on my car and makes sense. I'm only pushing 8-9 psi. With Kelly's map the AFRs started out at ~13.4 @ 4000 RPM and were dropping steadily towards redline. I only went up to about 5500 RPM and by then it was @ 12.2. I was afraid to continue past 5500, but I would guess that it would have leaned out by looking at the values in the map as the numbers in the cells were decreasing with rpm and boost. From what I understand a smaller number than 10 leans out the fuel correct? I haven't tried the stock super map as I'm afraid that it won't work well because my stock map run lean as is after 5500 rpm, unless the stock super map adds fuel in that rpm range?

Another thing I noticed is that the RPM in the software is off by about 1000 to my tach. Does anyone else show this difference?

Thanks.

 

[CustomMSP]

Do you have a datalog you can post? Yes- 10 is unaltered signal. Less than 10= less fuel.

I need to work on that. Does the RPM in your software differ from the tach on your car?

 

[Fudgie]

No, it doesn't. Mines right on the money. Are your engine settings correct?

I need to work on that. Does the RPM in your software differ from the tach on your car?

 

[CustomMSP]

No, it doesn't. Mines right on the money. Are your engine settings correct?

Yeah, and it seems that the rpm is dead on now.

I loaded the super stock map over the weekend it is works well. The car is running anywhere between 11-12 afrs. However, there was a moment when I was just crusing and all of the sudden the afrs went lean off the charts if I applied anything over around 10% throttle at any rpm. This was happening at around 2000 RPM and I didn't try to go higher. After a quick restart the car was acting normal again. Any idea as to what might have happend there?

Thanks.

 

[DSMConvert]

custom I'm assuming your looking at wideband afrs? if you have a twitchy gas foot, you'll sometimes confused the mazda ecu by flicking the pedal back and forth between "barely throttle" and "no throttle", i used to do this on my corvette without even noticing(goosing the throttle)...the r4 software rpm reading is the correct one...factory tachs are known to be off by anywhere from 100-750rpms in the upper limits of the readings..

 

[SLC-MSP]

OK guys, I need some help here. I've been running the DSM-AFC on the stock supermap for a few months now with no mods except CAI. My wideband always bottomed out at 10 right around 4000 rpm but I wasn't really too excited about tuning because I planned to do other mods soon and was pleased to at least have the dreaded stock ECU hesitation gone.

Stay with me...

Well, this week I installed a FMIC (still stock boost) and ran it on the stock map for a day. I hated my car because it choked and fell on its face under heavy acceleration, wb02 still pegged at 10. So, this evening after work, I uploaded the FMIC map thinking it would help. Now it's even worse. I can't boost AT ALL because the engine chokes and bucks and the power goes to zero. Gauge still showing 10.0 even before boost starts. Oh, just to make sure you have all the facts, I reset the ECU after uploading the new map.

I've read every page of this thread and I think I have all the possible trouble spots covered. My question, then, is: what does my 4100 feet of elevation above sea level do to the maps you guys are building at a couple hundred feet (or less)? Should I expect the same map you use to run so rich here in SLC that my car barely runs?

I'm going to upload the supermap again tomorrow morning and see what happens. Any guidance will be greatly appreciated.

 

[low_psi]

SLC-

I run the SuperStock map w/ TBE, FMIC and K&N. It pegs rich at part throttle and when first going WOT, before it slowly leans out to ~11.8:1. It sounds like you need to start leaning out the map from ~3000rpms+. The FMIC map only leans the midrange out a tad compared to the SuperStock map, and in your case it appears not enough.

You should not be running rich until boost starts to build though.

 

[DSMConvert]

yes the elevation will make a huge difference in your map settings...you have much thinner air at the elevation you are at, meaning that the fuel mixture is going to be much richer by about 20%... You'll need to lean out the values across the board, I'd probably start at a 10% change and go from there. Since we have liability with our product we do tend to tune our maps on the conservative side(ie a little rich at top end) just for that extra safety cushion. As I've told many members who have asked my advise, there is still about another 10hp that can be gained by leaning out the maps a tad more on a dyno tune...Hehe I never even though about having to have an elevation warning on our products...man you guys just keep finding all kinds of new things out that I never considered...let me know if I can be of any help...

 

[Earful]

Hey John,
What is the conversion you meant at 10% when using the R4 table? Looking for a number......