TunerPro User Forum

TriangulÃ©

Quite happy to read your happy end story ! and nice to see another great project running. do you run E85 or did you came back to 98 ? link blockknock look great tool. thanks for the feedback. Dawes device. I just add a look. It seems to help the wastegate to close better at low under the boost press...

TriangulÃ©

Hi JAS, Ok keep us informed. I hope you could provide some pictures, pistons, rings, head and plugs also. We could try to diag all together what happen and learn from this bad experience. The good point is that you can now buy a thicker headgasket to push a little bit more the pressure safely. good ...

TriangulÃ©

hi guys thanks Olafu for your feedback, this look coherent. There is no reason to have a WOT map if we unplugged the lambda probe. I'm curious to know if the "02 off check box" in the XDF is normal function of the ECU, i mean if it have been plan as a function by bosch ? Or is the xdf modi...

TriangulÃ©

thanks for your feedback. we plan to use INPA to monitor in live the sensors, my friend just ordered the ADS interface. I will buy the AUTOCOM if this is not working. Today we used the ostrich for a live mapping session. First thing we had to change the full set of igniton coils that have burnt on t...

TriangulÃ©

Hi JAS,

Can you please confirm that you can read 100% of the LIVE DATA with AUTOCOM on your M50.
It's a 20 pin round connector using ADS protocole ?

I try to do it with Carsoft but i can only diagnose the ecu not read live data.

Thanks

TriangulÃ©

there's some alternative with the chineses DSO series. As all moderne engine have electronics sensors, a portable scope is a good investment. even to repair or found the speed frequency signal, check ECU. it's a must tool to have. I have an Hantek 1060, it's small enough to bring it in the car durin...

TriangulÃ©

i don't think you can check the duty cycle % in tunerpro.
You have to take the scope or even a good multimeter than can make the measurement of frequency and dutycycle.
Some automotive multimeter can do it, anyway digital scope are really abordable nowadays.

thanks for sharing your results

TriangulÃ©

congratulation JAS and thanks for the numbers you share with us. Can you let me know what kind of AFR you are targetting for WOT ? At our side the engine was runing good at 12 for low boost (0.35 to 0.45 b) and request more than 11 to 10 with now 0.8 bars. Witch revision of AUTOCOM do you use ? We h...

TriangulÃ©

hi gitto, the AFR is a very important tool, because you will base your set up on your reading. so the quality, realiability and stability is more than important to know what you are doing. M50 is strong, but don't forget you will work on a turbo set up ! Old tuners in car factory, or old speed shop ...

TriangulÃ©

hi JAS, Happy to see you joining my thread, for the m50 turbo conversion fans :) From what i know, and if i'm not wrong, the maf voltage can go up to 5.0volts, but the ECU input can only accept 4.5 volt. That mean you are already saturating the input and the ECU is unable to see how much air is goin...

TriangulÃ©

please read my thread, olafu and i have explain how to do it.

TriangulÃ©

Hi JAS, the new k value is just the cc value difference : 190/540 = 0.352 original k value is 1.00 normally. You need to be sure of the exact value of the original injectors and compare them at same pressure. Our M50 was 165cc injectors. I don't think there is differente software revision for the 62...

TriangulÃ©

hello guys, I've try to modify the 0xDC15 adress, but it's not good, the engine is really difficult to start, really too rich. is this map runing at idle and cranking ? The chinese TIAL waste gate copy is seizing and all the screws from the cover go out by themselves. The production quality look not...

TriangulÃ©

hello guys, I come back after a while. What happen ? We were facing strange cooling liquid behaviour, it was increasing ... and get also high pressure on the engine bottom. Original head gasket burnt on the 5th cylinder. In fact, this engine already get some head gasket trouble by the past, we found...

TriangulÃ©

ok some news. The MAF is dying. We bought a new unit (probably from china) an get totally another result. The engine now is very lean and request a new mapping. We probably made all the set up on a old dying maf ... The good news : _ idle go back under 1000 rpm. _ no more step at 5500 hope this chea...

TriangulÃ©

We had a DTC on the MAF, but my friend didn't notice witch DTC reference it was. It's maybe coming from a test when we have disconnected it. Yesterday we try different thing : _ TPS is working good and give the right position on the diag. _ ECT sensor seems ok and give a coherent temperature on the ...

TriangulÃ©

hi guys, After our second track day session we are facing few small problems. _ idle come now too high (1200 rpm) and engine is slow to drop revs. _ engine is not runing good anymore around 4000 rpm. Idle is 1000 when cold and 1200 when hot. but very stable. I have tested the TPS sensor and ECT sens...

TriangulÃ©

The car was on the track this sunday with 33 degree C temperature outside. It was a really hot day. The car run all the day with 0.4bar max and WOT AFR set at 12. All was really great, the old E30 was able to compet with more modern BMW V8 and M2 than are more than 400 HP ... With a short final gear...

TriangulÃ©

thanks guys for your real reverse engineering work. It so impressive, that you spent so much time to go deep in the (necessary) details. A lot of XDF available only have the basic and easy findable maps , what is a little bit limited to tune advanced engines. The M.3.3.1 is more than 25 years old, b...

TriangulÃ©

Ok first i will try to get coherent tables and try to understand what is the goal of each "acceleration map" because there is a lot of them :) Where all theses adresses are coming from guys ? Did you bought a Damos file or did you disamembly the microprocessor code software ? I can recogni...

TriangulÃ©

well i think we have to buy the ostrich box, it will be hard to solve this problem with trial and error testing. but my friend didn't realize that will be so much time to make this tuning working. i don't want to let him I have close also the evaporation valve, that is not connected anymore to the t...

TriangulÃ©

Only thing i can tell you for the moment is that the engine is too rich (AFR 9) after 5500 on full throttle. If we release a little the pedal, AFR go up (13) the power come back . It's look like it's just too rich. but not everywhere at wot only after 5500. Also my friend push the turbo pressure fro...

TriangulÃ©

what scales did you took for these "acceleration maps"
I would like to work on that also.

TriangulÃ©

hello Olafu. Ok i think i understand what you explain for the rescaling. So the before theorical max load was 8.2. the new engine will made 300 Hp instead of 200 so i have to add some margin. I'm checking with my friend the injectors references. But we have calculated a k = 0.463 original are 165 cc...

TriangulÃ©

Hi olafu, First thing thanks for your time and reply that help to go ahead. The ecu get this afternoon a speed signal from the cluster. This is working now the ecu is not cutting anymore at 5500, and can go to the rev limiter without problem. So you was right ! thanks for this big help. The WOT stil...

TriangulÃ©

I've change it directly in the tunerpro table, not in the hex file ?
starting by the last number.
Is it working ? I mean is tuner pro change also the hex file like for data values ?

We have checked, there is no speed signal.
I need now to found the signal from the cluster to connect it to the ecu.

TriangulÃ©

when the engine was NA, this was also perfectly working. We went to the dyno and get the full power, without any problem. I will check the v signal with the scope today. I'm interested to know how the ecu software is programmed to recognize if it is a manual or A/T. This is maybe different software ...

TriangulÃ©

Hi Guys, Still working ! and have an idea ! The original E34 engine was Automatic gear box but now converted to manual. There is some specific maps for the A/T. How the ecu can know is have to work on automatic or manual maps ? I'm surprised there is no Advanced or Retarded VANOS maps for the A/T. A...

TriangulÃ©

Ok so we have made another test tuning the WOT at a very low value. The AFR still reaching 9. So i have tested value from 75 to 160 (middle point at 128) and all of them give me too much fuel. As soon as we push the trottle from 50 to 100% open, the AFR increase from 12 to 9 instanously. So this see...

TriangulÃ©

Ok I just tested to change the WOT map and still same (AFR 10). Seems it's not changing anything. We think the engine is cutting at 5500 because it's too rich. When we increase the turbo pressure, it still too rich but the engine is not "cuting" anymore, and can go upper. On the PT map, th...

TriangulÃ©

Hi Olafu, Thanks for these very interesting informations. We have changed the TPS sensor, and get even better result. Now it's not lean anymore. The engine is now really too much rich (aroung AFR9 to 10) after 5500 rpm but not cutting. I saw your previous message about the v signal. I have still not...

TriangulÃ©

Ok, 10% throttle solved. Idle AFR solved. Turbo pressure is now 0.5bars. The engine is now "cutting" at 5500 rpm at WOT. If we use 75% of the Throttle, engine can go 7000 rpm without problem. I try to modify the igniton WOT map to rescale it to have a larger load available, but there is no...

TriangulÃ©

Hi Hairyscreech, First of all, thanks for the help and time you take to reply me. I see i have to be more precise. The car is an E30 but engine come frome an E34 from 1992. We are in Europe, so all maps are european version. The engine swapped from the E34 is the M50b25 (195 Flywheel HP), with for s...

TriangulÃ©

Ok i have spent some time on the car yesterday and the ecu is reacting well to the 623 chip. The block engine is stock, original piston, head gasket. We just change the rods bearings. We have started by a pressure of 0.35 bars and the car is running good. Just some mistakes : _ the idle target seems...

TriangulÃ©

Well, i have open the 623 and the 609 (with the 413 xdf provided on the other big thread) both have been read from the Eprom directly, but nothing is similar. that is really strange, because the car was running good with the 2 chips on the same ecu. I don't know what to think about that. If there is...

TriangulÃ©

Hi guys, We are building an E30 with an m50b25 turbo for track use. The car is really too rich to run properly. the origjnal ecu used an 609 chip and have work before with an 623 improved cheap for NA bought on ebay. Now we add the turbo we don't know if the ecu can work on the 609 and 623 chip or i...

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