pcmhacking.net

The next update to holden202t's Advanced 12P Tuning Guide will have baro info in it. But yes the BLMs will help to trim fuel but it will be noticeable due it taking some time to make changes. I do still think an ECU that uses a baro sensor to allow updates under all conditions would be a better choice for your application.

Thanks alot for your help

Any ideas on suitable ECU with baro

I think megasquirt can be setup to run a second MAP for reading current air pressure

motec can do it but expect to pay for it

Holden202T wrote:your seeing all 100's because the tune you have loaded is only 1 bar, change the flags so its 2 or 3 bar and the numbers in that table will change accordingly.

as far as a detailed explaination, there is really only the threads on the forum with peoples questions in them aswell as the beginners guide which the link for that is in my signature.

I've been playing with a $12P bin to get an idea of what it might take to get it to work in my application.

So far I have only been able to get the VE boost table to be set for 1 BAR MAP and 3 BAR MAP. MAP values either all 100s or 100 to 300 Kpa. I have not been able to get it set for a 2 BAR MAP sensor (100 to 200 Kpa).

Is there information on how to set the flags for the different map sensors correctly? It looks like there are 4 flags used to do this:
Map A: MAP Sensor Type Selection A \ A:B Clear = 1Bar
Map A: MAP Sensor Type Selection B / A Set = 2Bar, B Set = 3Bar
Map B: MAP Sensor Type Selection A \ A:B Clear = 1Bar
Map B: MAP Sensor Type Selection B / A Set = 2Bar, B Set = 3Bar

In addition to this what is all of the Map A and Map B stuff? I see it throughout the XDF.

Holden202T wrote:mate if i were you i would use a standard blcd v6 tune and change the injector rate and referenace angle to suit your motor, that straight 6 tune is going to be way wrong for your setup!

Description: This is a starting point for anyone wanting to use $12P code on a Holden straight 6 cylinder motor. It has rough settings that should get the car running with stock injectors and then it can be fine tuned from there.
Main changes include spark reference angle for straight 6, removal of knock sensor and trouble code, thermo fan settings, VE and Spark tables.

NOTE: injector rate will need to be changed to suit the engine you are running, this tune uses .10 to suit a 173ci engine, so something like .11 would be needed for 186ci and approx .12 for 202 - this assumes use of stock VK or VN injectors.

Is the injector rate sorta like a base injector value/constant, similar to "Base Pulse Constant vs EGR"?

Also in relation to the "reversed TCC parameters" that's come up through the thread. There are some applications where the 700R4 was used where the TCC works "backwards" than other applications. Some people use a relay to invert the output from the ECM, other's replace the wiring harness in the trans, when they can, modify the parameters in the BIN.

I'm looking at using this on a Nissan 2.8L turbo, currently running $59, and has been running well for about 4 years, with a few slight issues. I'm going to check to make sure some of those issues aren't mechanical. One issue might be my fuel supply, causing a lean spike, sometimes, but others have reported a similar issue also using $59.
I have recently swapped to low-Z injectors which seems that the $12P compatible ECMs won't be able to run. I would like to find a way around this, since I plan to also run this on my next engine, that will definitely REQUIRE larger injectors that will be low-Z.

One last question:

How do I set-up the flex outputs? I've looked through the XDF for any flags, scalers and tables to see how to use them. I would need to be able to set one for use for boost control, at least to start with.

Six_Shooter wrote:I've been playing with a $12P bin to get an idea of what it might take to get it to work in my application.

So far I have only been able to get the VE boost table to be set for 1 BAR MAP and 3 BAR MAP. MAP values either all 100s or 100 to 300 Kpa. I have not been able to get it set for a 2 BAR MAP sensor (100 to 200 Kpa).

Is there information on how to set the flags for the different map sensors correctly? It looks like there are 4 flags used to do this:
Map A: MAP Sensor Type Selection A \ A:B Clear = 1Bar
Map A: MAP Sensor Type Selection B / A Set = 2Bar, B Set = 3Bar
Map B: MAP Sensor Type Selection A \ A:B Clear = 1Bar
Map B: MAP Sensor Type Selection B / A Set = 2Bar, B Set = 3Bar

we'll disregard the MAP A/B's for the moment.
MAP Sensor Type Selection A \ A:B Clear = 1Bar
MAP Sensor Type Selection B / A Set = 2Bar, B Set = 3Bar

so the first line is Selection A and the second line is Selection B .... so for 1 bar, A and B are unticked, A is set for 2 bar (what you want) and B is not set unless you want 3 bar.

Six_Shooter wrote:In addition to this what is all of the Map A and Map B stuff? I see it throughout the XDF.

So this information is in the tuning guides by the way .... any MAP A or MAP B stuff is just the same option doubled up, so unless your running two tunes with different fuels etc, i'd suggest any change you make to one of them make the same changes to the other.

that said, you will only have MAP B active if you connect a switch up to the correct pin to ground the pin in the ECM, this then switches to MAP B tables, if theres no switch your always on MAP A.

Six_Shooter wrote:One last question:

How do I set-up the flex outputs? I've looked through the XDF for any flags, scalers and tables to see how to use them. I would need to be able to set one for use for boost control, at least to start with.

This info is in the advanced tuning guide, which is linked in my signature. map switch at the start then flext tables after it

Holden202T wrote:

Six_Shooter wrote:I've been playing with a $12P bin to get an idea of what it might take to get it to work in my application.

So far I have only been able to get the VE boost table to be set for 1 BAR MAP and 3 BAR MAP. MAP values either all 100s or 100 to 300 Kpa. I have not been able to get it set for a 2 BAR MAP sensor (100 to 200 Kpa).

Is there information on how to set the flags for the different map sensors correctly? It looks like there are 4 flags used to do this:
Map A: MAP Sensor Type Selection A \ A:B Clear = 1Bar
Map A: MAP Sensor Type Selection B / A Set = 2Bar, B Set = 3Bar
Map B: MAP Sensor Type Selection A \ A:B Clear = 1Bar
Map B: MAP Sensor Type Selection B / A Set = 2Bar, B Set = 3Bar

we'll disregard the MAP A/B's for the moment.
MAP Sensor Type Selection A \ A:B Clear = 1Bar
MAP Sensor Type Selection B / A Set = 2Bar, B Set = 3Bar

so the first line is Selection A and the second line is Selection B .... so for 1 bar, A and B are unticked, A is set for 2 bar (what you want) and B is not set unless you want 3 bar.

That is what I thought, but the Map A and Map B stuff had me confused. As I said before the boost tables seem to only populate with 100 Kpa or 100 to 300 Kpa, regardless of MAP sensor settings. According to earlier posts, it sounds like the boost VE table(s) should be populated with 100 to 200 Kpa when a 2 BAR MAP sensor setting is used. If it gets populated with 100 to 300 Kpa for both 2 and 3 BAR MAP sensors it's not really an issue, since 200 to 300 Kpa just wouldn't be used.

FWIW I am using a 3 BAR MAP sensor, and once I get things tuned in again, I plan to once again be utilizing pressures that go into the 3 BAR realm again.

Six_Shooter wrote:In addition to this what is all of the Map A and Map B stuff? I see it throughout the XDF.

So this information is in the tuning guides by the way .... any MAP A or MAP B stuff is just the same option doubled up, so unless your running two tunes with different fuels etc, i'd suggest any change you make to one of them make the same changes to the other.

that said, you will only have MAP B active if you connect a switch up to the correct pin to ground the pin in the ECM, this then switches to MAP B tables, if theres no switch your always on MAP A.

That makes sense, and I did see mention of possible table switching previously in this thread, just didn't put 2 and 2 together. So since there are two independent MAP settings for map A and Map B, that means I could run low boost on say Map A and a 2 BAR MAP sensor, then when switching to Map B, use a 3 BAR and allow high boost, while also switching MAP sensors externally (through a relay), correct? Hmmm

Has anyone used Map switching using an Ostrich? I don't have an NVRAM, but I have a few Ostriches, and plan to continue to use them. This sounds like regardless of set-up both maps (A and B) are in the bin, so it shouldn't really matter. It sounds like it functions differently than a bin switcher, that it switches between tables within a BIN file and not to a different (stacked) BIN file, correct?

Six_Shooter wrote:One last question:

How do I set-up the flex outputs? I've looked through the XDF for any flags, scalers and tables to see how to use them. I would need to be able to set one for use for boost control, at least to start with.

This info is in the advanced tuning guide, which is linked in my signature. map switch at the start then flext tables after it

I clicked on that link earlier, but seemed to be something different, so I didn't download the pdf until now.

Thanks

somehting sounds a bit off with your setup.... the column labels should change when you switch the map sensor type. are you using the latest V111 bin and V111 xdf? (you must use the matching version bin and xdf as the locations of items changed)

here are some shots I jsut took for you. remember you have to close and reopen the tables for the column labels to update as the column labels actually read data in the bin with a formula to determine the column labels.



2 bar
3 bar

Yep, I've only ever downloaded the V111 $12P.

I have closed the tables, to update, learned that one a LONG time ago with other code.

I've also go so far as to close and restart Tuner Pro. I can only seem to get 100 Kpa and 100 to 300 Kpa in those tables..

--==EDIT==--

I just tried it again, and it seemed to work this time. :shrug:

/--==EDIT==--

I've found another issue that doesn't seem to covered in the tuning documentation, and may not be an issue for someone using an NVRAM, but I don't own one, and use my several Ostriches for tuning instead.

Anyway, I downloaded and installed the flashtool, to edit the flex tables. I want to use one table for boost control, but so far have only been able to use a Kpa setting with a maximum of 104.4 Kpa. I would assume that I need to open a cal that has been set for 2 or 3 BAR MAP, in order to use higher than 104.4 Kpa settings. Is it as simple as changing teh file type extension of a bin from .bin to .cal, to enable opening of a bin that has teh required settings?

--==EDIT.2==--

I seem to have played around enough to have figured out that if I open a .cal in Tuner Pro, I can set the MAP sensor selection there, save that .cal. This will allow me to open it with the flashtool, at which point I get a prompt asking me what BAR MAP sensor I am using, and am then able to set the proper max axis value.

/--==EDIT.2==--

I have figured out how to modify the XDF within the flash tool, very cool, I was dreading modifying the XDF manually, not that I can't do it, just that it takes a while to do.