TunerPro User Forum

Hairyscreech

Right, more updates then. Did not know about the charcoal canister, as my system is installed on an E30 M20 I have one plugged in but just hanging out in the engine bay with no vacuum tubes, on or off would make no odds to me but would if it was connected. I have added this note to the excel documen...

Hairyscreech

Setting load threshold to 255 will reduce advance for some reason. Try 254, by setting it 0 it is always on... That's how I expected it to behave, observed behavior is 255 = terrible, 0 = drove ok. I will test again tomorrow as the car is too loud to go out again for a test now. I am sure you are c...

Hairyscreech

Just been out in the car, I can 100% confirm that zeroing the 4 lambda off tables and unsetting the flag puts it in permanent open loop. I have been running like that for about 3 months with very consistent results. (14.7-15.2 at cruise where I set the fueling to, no changes regardless of conditions...

Hairyscreech

Ok, here is the working document so far.

If you spot any mistakes then let me know where so I can check and update.

http://www.filedropper.com/413and506map ... s-17-10-14

Hairyscreech

Thanks, helpful. I have just been playing with this and I think the 32 value knock tables are actually a 16x2 map. I was looking at them as possibly 16 bit values but digging through my excel master sheet of the code there is a D5 2 value axis below the D0 16 value axis. Wedged between the knock con...

Hairyscreech

The Romraider guys might have some info, they are more familiar with the Siemens ECUs over there.

Is there nothing suitable on the downloads page?

Hairyscreech

So you know, there is a formula for the timing, it is something like the raw hex value, minus 60, divided by 2(might be 4?) working from memory at work so best to double check that. Either way it is in the XDF files, conversions tab I think. Both the 413 and 506 def files have the correct timing for...

Hairyscreech

Just for clarity here, the 413 and 506 ECUs are identical hardware. They are both 6 cylinder versions of M3.3.1. The 413 ECU was for the M50B25 and the 506 for the US S50B32. Like the E30 172 and 173 ECUs they are only chipped differently so either ECU can be used on either car with either BIN. They...

Hairyscreech

You need to right click and "save as" on the XDF files, then save them as .XDF For the 506 XDF the link is broken, I made a quick post about it elsewhere with a link that you can right click and save as on to get the xdf. Use the 506 BIN with the 506 XDF as has been suggested, the 413 bin ...

Hairyscreech

Yikes, ok, 32lb is a lot of fuel, more suitable for a turbo car. As Evil said check things out with the 17lb injectors and if you are struggling for fuel at the top end then get some pink top M52 injectors. To be honest though the S50 throttles will not give you a lot of benefit, the M50B25tu does n...

Hairyscreech

The best software seems to be the 506 software as it is the best understood so far and the XDF on the tuner pro site is the most complete. You can copy the B25 maps into the 506 bin and it will run just the same as before. There are only small differences between the 506 software and the others, mos...

Hairyscreech

I have been trying for a while to get a good disassembly of the code from the 413 ECU with mixed results. Biggest issue I am finding is that the code seems to reference the zero register a lot and IDA is not liking it. IDA treats the zero register as always zero making a lot of the code meaningless....

Hairyscreech

Hi, Yes it would be a very good thing to extend the size of these tables :D To tell the ECU to point only one table I really dont know how to do, It certainly needs to re_write some code but I dont know a F*** about it :lol: I think you already knows but you can also tune identically the 2 tables :...

Hairyscreech

Good to confirm it works as suggested. It almost seemed too simple to be true. :D I am tempted to have a fiddle with the Vanos ECU and see if the fuel and spark tables can be expanded as it would give more resolution for the turbo tunes. I might see if I can point the ECU to just one table for both ...

Hairyscreech

There is certainly an ignition table in there somewhere, there is one in the M3.3.1 which carried over a lot of the tables from the non vanos ECU.

Think it is a 5x1 table, you will see it in the latest 506 ECU XDF.

Hairyscreech

I think you need to ask the person that gave you that file, from what I can see it is set up the same as a stock 405 E34 tune but is only 32kb.
Comparing the two in a hex editor shows them as the same until near the end of the file when the 64kb 405 file begins to differ for obvious reasons.

Hairyscreech

Just want to verify the 402 and 403 ECU should have 32kb bins right? The 64kb bin I have for the 405 has the table as expected. I though the non vanos ECUs were all 8 bit 8051 processor based with the 413/506 taking the leap to 16 bit and 80196 processor? If they are 8 bit then the table is going to...

Hairyscreech

Thanks. Here are the links posted to Mega. Let me know if they work. https://mega.nz/#!NDh1HSoR!PqwFpI_Kle_YeTRBPCSITSmhQLM-XCDMEnW-i1RHHsk https://mega.nz/#!RHJQWAIS!agxteE15dynth-JG4B0biXbMEj9Mfa61-VgM5ZsF0Po OK, looking at these they are set up for the M50 injectors I cannot see any adjustments ...

Hairyscreech

You're right about extending the limp mode table, thats exactly what I want To do. I've done another thread about it to make it easy To ses for other people. I have some photos of the setup i will post them today. I polished the manifold up To 400, maybe its too much as you say. But the bignproblem...

Hairyscreech

the speed signal is essential for the DME413 to work correctly but there is no limiter at 5500 rpm. you have another problem causing the cut at 5500 100% sure tell me about it, i have been having trouble with my diff plug making the speedo cutout and a total mess of any tuning run I was on at the t...

Hairyscreech

As far as I am aware the table is in little-endian format. So the hex is backwards, eg for the 403 fuel map at 0x711C in the XDF, adding on the headers it actually starts at 0x71FC so the table will contain FC 71.Have to say though, after a quick look I cannot find the table in the 403 bin I have. S...

Hairyscreech

Am I right in thinking you thread about making the tables bigger may have something to do with this thread? Are you thinking of making the limp mode table bigger? It is possible you are correct about wetting out the walls of your manifold. Is your manifold a smooth polished surface inside? If so the...

Hairyscreech

Right, after some work tonight I can probably actually help with this. First off, do you have your ostrich and a wideband yet? if not proceed no further as I cannot be 100% sure the results will be the same on the 405 as the 413. If you use the M20 injectors you absolutely have to adjust the injecto...

Hairyscreech

From what I know on the subject (a little gathered from HTT and others) the ECU uses the "table of tables" to address the correct maps\tables. If you know how the motronic headers work then it is a simple case of moving the table to a new location, increasing the table size by editing the ...

Hairyscreech

You will need a speed signal, upside is that it is only an unmodified signal from the diff. Wire up your VSS in the diff to the ECU and you should be golden. The need for a signal is hard coded into the ECU, until there is a publicly available disassembly of the code or I can learn enough to do it a...

Hairyscreech

Working now, You should not need to touch the MAF table as long as it is correct for the MAF you are using. You need to be using the early M50 MAF with your ECU, the later ones are slightly different. If you adjust that injector constant then you need to adjust the load axis of all the other maps as...

Hairyscreech

I can't open either of your pictures, the link just 404s

Hairyscreech

Won't matter provided the ECU is set up right for the injectors. Both the M20 and M50 injectors are capable of fuelling the engine correctly. There is the argument that the M50 injectors are 4 hole and give better atomisation of the fuel, there is also the counter argument that the spray pattern is ...

Hairyscreech

I would start by either finding those injector dead times or swapping in a known set, these ECUs really need to know how fast the injectors open to work right.

Without getting that table set up right any other adjustment is going to be guess work or a work around.

Hairyscreech

The table should be higher number for more enrichment, certainly that it the response I get from the M3.3.1 ECU. When I say reducing the numbers lowers the AFR I should have been more specific, Reducing the numbers should reduce the fuel, which means the numerical value of the AFR would increase. Sh...

Hairyscreech

It seems to behave as an additional enrichment on top of the values in the VE table. Makes sense as the VE table is already working off load, which increases with acceleration... The acceleration enrichment is intended to compensate for the wetting of the walls of the inlet port and the delay in the...

Hairyscreech

There is one on the main tuner pro site but it is not very comprehensive.

Hairyscreech

I know the Axis descriptors are a little different from the 413 ECU but the enrichment table is TPS volts vs RPM, 6 wide 4 high. It has a noticeable effect on the 413 ECU, reducing the enrichment does drop the initial AFR when you change throttle position. As you say you have changed injectors do yo...

Hairyscreech

That's the conclusion I had reached as well. M50 injector is ~190cc/min at 3.5 bar from what I can see. My injector voltage correction is: Volts - 7.8 - 9.8 - 11.7 - 13.7 - 15.7 M20 - 2.55- 2.14- 1.55 - 0.98 - 0.52 M50 - 2.10- 1.80- 0.72 - 0.56 - 0.36 Big difference in the response curves and massiv...

Hairyscreech

Ok, understand on the TPS adaptor. I might swap my throttle shaft around too, would make it easier to plug the TPS in instead of it facing the engine block. Is the TPS bracket you have adjustable in any way? It is quite important that the voltage from the TPS is around 0.3-0.4v closed or the ECU doe...

Hairyscreech

Looks like you are in a very similar position to me except I have gone one leap further and used the M50 vanos unit to get a few of the more advanced features. I have not heard of anyone who has a known good M20 bin for either of the M50 ECUs, I am sure there are a few who could put a car on the dyn...

Hairyscreech

From what I know of these ECUs (sure someone can correct me if I am wrong) you will need to give the ECU a normal TPS input as well as giving the MAF input the TPS voltage. Both are being used by the ECU so giving it the TPS voltage on the MAF input and running no TPS is also going to put it into li...

Hairyscreech

100% you will need to adjust the acceleration enrichment table, If your fuel tables were ok before adding the throttles then that may not be too tricky, otherwise it could become a bit of a circular task. It is not the TPS transfer map you would need to adjust but the RPM vs change in TPS voltage ma...

Hairyscreech

I would think you have 2 issues going on, whipping the throttles open quickly is resulting in the air getting to the chambers faster than it did with the single throttle and plenum set up, this is going to throw out your acceleration enrichment. Second thing the acceleration enrichment is based on t...

Hairyscreech

Done some more on this, the TPS table does seem to be voltage, ADS scanner says that the throttle is shut at about 0.3v and fully open about 4.2v. Ostrich does not trace that map when the TPS is opened though so no real way of confirming the result. Had to plug in the standard Lambda sensor and leav...

Hairyscreech

If you are really set on using the 172 bin then your best off making the XDF yourself.

All the maps you need are laid out on the 173 XDF and the corresponding data in the 172 bin will not be too far from the 173 location (simply due to how BMW did the code).

Hairyscreech

That is the E34 M50B20 unit right? Are they not the same as the E36 non vanos ECU units? Edit - A search on here would have found the link below, looks like the 405 bin works on the 400 ECU so looks like they are the same as the E36 units. http://forum.tunerpro.net/viewtopic.php?t=3887&sid=f8398...

Hairyscreech

I have a bit of an odd set up with a M3.3.1 ECU running an M20B25 with the vanos disabled in the .bin (resistor replacing the solenoid to avoid fault codes) it's running and driving so I am now starting to get into the meat of the tuning. I have been looking at the ECU and software for about 2 years...

Hairyscreech

What car is this M3.3 from?

ECU and chip number?

Hairyscreech

172 and 173 hardware is the same as far as I am aware, you can use the same chip in either ECU to run either of the corresponding engines. I have a standard 172 ECU sitting in my office that I could pull the .bin off for you to compare with the 173 .bin. If the files are the same bar the values in t...

Hairyscreech

I am sure others have been trying to get the newest 506 XDF from the definitions page and been stuck with a "failed - No file" message. It seems there is a "/" missing from the link on the page. Correct link is below: http://tunerpro.net/download/bindefs/BMW/BMW_506_CHIP_965_%20p...

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Has anyone on here disassembled the 413 code?

M3.3.1 motronic (413 and 506) tuning and XDF update?

Link to 2/24/16 506 XDF broken