bmw m50 tune? anyone?

[maxo-tt]

i've just installed v88. cant start the engine. looks like i have some tune issue.

maybe someone can share any base tune for m50 vanos engine?

i try to start engine with "BMW E36 i88 Plugin.pcl"

[Dave Kriedeman]

Hi,

is your ECU a V88 based Plugin or Stand alone.

Can you post your PCL file so I can have a look and possibly help you.

Regards

Dave.

[maxo-tt]

its stand alone.

i've fixed that issue already, but now i got spark blowout i think. got AFR 10.8 @ 7000 and suddenly 17

after 7000 it sounds like fuel not burns in comb chamber, but in exhaust.

p.s Dave, do you know how to wire up and configure vanos?

i've just connected aux 4 to vanos solenoid. is that enough?

and one more question.

i think my IAT and CLT sensors also needs calibration :/ they are not in a list. i've selected "Std Bosch NTC", but it may shows wrong :?

last.pcl

[Dave Kriedeman]

Hi,

are the IAT and ECT sensors the standard BMW sensors or have you installed the ViPEC sensors.

What was wrong with the MAP sensor, how did you fix it.

I will download your PCL file and check over your settings etc.

Regards

Dave.

[maxo-tt]

Hi,

are the IAT and ECT sensors the standard BMW sensors or have you installed the ViPEC sensors.

What was wrong with the MAP sensor, how did you fix it.

I will download your PCL file and check over your settings etc.

Regards

Dave.

thanks for help dave,

i use standard bmw sensors. m50 iat and m52 clt(i think m50 m52 same functionality)

nothing wrong with map, i use cal 4 table as you told me. so it works ok. startup problem was not caused by map. just used another tune file and engine runs ok.

just not sure about vanos and sensor(clt iat) calibrations. as my friend told me, stock bmw sensors show wrong values without calibration. but no idea how to make it

[Dave Kriedeman]

Hi,

are you able to get the part numbers off the air and coolant temp sensors at all.

Does your engine run a Hall effect sensor for the crank trigger.

I will look at the vanos setup shortly.

So does your engine run ok, just running very rich,

Regards

Dave.

[Dave Kriedeman]

Is your engine definitely single Vanos not dual.

Can you let me know what the idle rpm, MGP value and AFR values are when the engine is idling please.

Regards

Dave.

[maxo-tt]

Hi,

are you able to get the part numbers off the air and coolant temp sensors at all.

Does your engine run a Hall effect sensor for the crank trigger.

I will look at the vanos setup shortly.

So does your engine run ok, just running very rich,

Regards

Dave.

air: 13621725323

clt: 13621703993

crank: 12141726066

crank sensor as i believe is magnetic. i'll search again. 100% looks like a pic bellow

i don't think its rich, 10.8 is quite good afr @ high rpm and boost, no?

[maxo-tt]

Is your engine definitely single Vanos not dual.

Can you let me know what the idle rpm, MGP value and AFR values are when the engine is idling please.

Regards

Dave.

yes its single.

oh i have bad idle. idle valve not connected yet.

rpm:1609-1650

map: 29

MGP: -69

afr: 11.2

log file attached also

1.rar

[Dave Kriedeman]

Hi,

can you please advise exact engine code and build date please.

Trying to workout if full VANOS continual variable valve timing varying frequency or just rpm, map activated single solenoid setup, only active as ON or OFF function.

If crank trigger has 2 wires is Mag Reluctor, 3 wires is Hall Effect.

Regards

Dave.

[maxo-tt]

Hi,

can you please advise exact engine code and build date please.

Trying to workout if full VANOS continual variable valve timing varying frequency or just rpm, map activated single solenoid setup, only active as ON or OFF function.

If crank trigger has 2 wires is Mag Reluctor, 3 wires is Hall Effect.

Regards

Dave.

"""""NB""""" YOUR LOG FILE IS A RAR FILE, NOT A LLG FILE.

my engine was m52b28 1996, then i swapped m54b30 crank and cp pistons and switched to m50 vanos bosch engine wiring. i bought this wiring and sensors. so cant say year and model of this wiring or sensors. maybe remove the sensor? and see serial number?

i believe m50 vanos has vr crank sensor and hall cam sensor, and m50 non vanos vr crank and vr cam.

http://www.r3vlimited.com/board/showthread.php?t=122125

here post for example. a guy replaced on m50 vr to hall. it means m50 has vr sensor

http://forums.bimmerforums.com/forum/sh ... ms-sensors

here "413 uses a VR crank sensor and a hall effect cam sensor"

i also got wiring with 413 ecu

log file within the rar. forum not allows me to upload llg. no winrar installed?

p.s maybe those values are correct for my sensor?

tempC Ohms totalRes current volts ADcount A2L

–40 39260 40260 0.000124193 4.876 997.6

–30 22960 23960 0.000208681 4.791 980.3

–20 13850 14850 0.0003367 4.663 954.1 957

–10 8609 9609 0.000520346 4.480 916.5

±0 5499 6499 0.000769349 4.231 865.6

10 3604 4604 0.001086012 3.914 800.8

20 2420 3420 0.001461988 3.538 723.9 731

30 1662 2662 0.001878287 3.122 638.7

40 1166 2166 0.002308403 2.692 550.7 558

50 835 1835 0.002724796 2.275 465.5

60 609 1609 0.00310752 1.892 387.2 383

70 452 1452 0.003443526 1.556 318.5

80 340 1340 0.003731343 1.269 259.6 248

90 261 1261 0.003965107 1.035 211.7

100 202 1202 0.004159734 0.840 171.9

110 159 1159 0.004314064 0.686 140.3

120 127 1127 0.004436557 0.563 115.3

130 102 1102 0.004537205 0.463 94.7

140 63

found here

http://www.m3forum.net/m3forum/archive/ ... 64202.html

[Dave Kriedeman]

Hi,

OK so the cylinder head is an M50 Single VANOS on the inlet camshaft only.

Regards

Dave.

[maxo-tt]

Hi,

OK so the cylinder head is an M50 Single VANOS on the inlet camshaft only.

Regards

Dave.

head is m52, but with m50 cam sensor. so it should work as m50. as i know vanos the same for m50 and m52, both single vanos only inlet.

[Dave Kriedeman]

Hi maxo-tt,

thanks, I just need as much info as possible as I am not familiar with BMW.

I have been trying to get the specs for the IAT and ECT sensors you have supplied the P/No's for.

It appears that riding a bicycle to the moon and back would be easier.

I will try to make up calibrations for these sensors based on the links you have provided me.

On another note what size are your fuel injectors and a part number if possible and what static fuel pressure are you running.

Regards

Dave.

[maxo-tt]

Hi maxo-tt,

It appears that riding a bicycle to the moon and back would be easier.

if its hard to find, never mind. vanos is more important now. and spark blowout issue. i'm quite sure clt and iat calibration will not fix the problem just wanna set up vanos correctly , maybe it causes the problem? :roll:

p.s clt shows about 10 degrees more. 2 week ago, when i used megasquirt, it was reading max clt 99 after few high boost run. now it shows max 110.

IAT was max 32, now 39.

also yesterday was about 10 degrees hotter outside. maybe it shows correctly and the differences just because of weather changes

Hi maxo-tt,

On another note what size are your fuel injectors and a part number if possible and what static fuel pressure are you running.

Regards

i use siemens deka 80LB injectors(FI114992 part number i believe). 3 bar static fuel pressure. not sure if it should be so, but stock m50 fuel rail has 3 bar regulator. i have adjustable FPR will change if needed.

[Dave Kriedeman]

Maxo,

does your intake cam have 1 or 2 Vanos solenoids.

Regards

Dave.

[maxo-tt]

Maxo,

does your intake cam have 1 or 2 Vanos solenoids.

Regards

Dave.

it has one.

thats it. 2 pin solenoid. i've connected one of it(the pin that was previously used with megasquirt) to aux 4. no idea that another one is. maybe +12

p.s edited last post on previous page. maybe something interesting

[Dave Kriedeman]

Hi,

OK so the fact that there is only one solenoid on the inlet cam, leads me to believe this VANOS CONTROL is a simple switched ON/OFF setup and not a continually variable output.

If you where running MS ECU before how was VANOS output controlled.

Can you post a screen shot of the VANOS control setup from your MS software.

Regards

Dave.

[maxo-tt]

Hi,

OK so the fact that there is only one solenoid on the inlet cam, leads me to believe this VANOS CONTROL is a simple switched ON/OFF setup and not a continually variable output.

If you where running MS ECU before how was VANOS output controlled.

Can you post a screen shot of the VANOS control setup from your MS software.

Regards

Dave.

yes i used on/off. or i could also setup variable. but i never tried it. looked harder to me :/

(100 means on, 0 means off)

[Dave Kriedeman]

Hi,

yes I discovered this while you where posting.

At idle VANOS solenoid is off, just above idle VANOS solenoid is on, this advances the inlet cam 12.5 degrees.

Then at 5000rpm VANOS SOLENOID is switched off.

Cool I can now configure a PCL file for you.

Regards

Dave.

[Dave Kriedeman]

Hi,

I have attached a screen shot of 2 different ways you can setup the software to control your VANOS solenoid.

In these examples I have setup the PWM output as AUX 5 purely so I could show both options on the one screen.

If you choose the PWM option obviously it would be applied to AUX O/P 4.

The AUX 4 option set up as GP OUTPUT is the easiest but has some limitations.

The AUX 5 option set up as PWM OUTPUT has more flexabilty to it, you can choose to have no VANOS under certain boost set points (MAP values) etc if you wish.

EG: at 150 Kpa you may wish to turn the VANOS solenoid on at 3000 rpm instead of 1101 rpm and off at 6000 rpm.

You will notice that I have added defined ON/OFF values in my PWM tables.

EG: 1100 rpm value is 0, then at 1101 value is 100 .

Setup this way will give you a definite ON/OFF point where as if you have 1000 rpm value is 0 and 1500 rpm value is 100 the ECU will start to add duty cycle to the solenoid gradually as the engine rpm increases to the fully on 100% set point at 1500 rpm.

EG: at 1250 rpm the output would be 50%.

You will also see I have added a 3rd condition, TPS value greater than 3%, I have done this as I don't believe you would require the VANOS to be active on decal etc.

The 3% value is purely an example value.

Try using the ECT and IAT temp set ups in my screen shot, I have found that both those sensors are NTC type.

Let me know how you go.

Regards

Dave.

[Dave Kriedeman]

Maxo-tt,

once you have setup your VANOS control and changed your temp sensor input settings and confirmed the temps are reading realistic values.

Can you please load the attached TARGETAIR FUEL TABLE into your PCL file.

I have created a safe target map just to get some tune into your engine.

I need you to then do a log run.

I want you to manually activate the START and STOP of the log run by using the f8 Key.

I am just trying to eliminate any decel fuel values etc when you back off.

So once you are at peak revs /boost hit F8 to stop the logger.

I want you to log,

Engine speed, MAP, MGP, TPS MAIN, IAT, ECT, IGNITION ANGLE, AFR TARGET AN VOLT 3 ( WIDEBAND), INJ DUTY CYCLE.

I need you to do this run in say 3rd gear from low rpm to max rpm with WOT (100%) for as much of the run as possible.

Save the log file as RUN 1 new AFR TARGET

Regards

Dave.

[maxo-tt]

oho... looks like i had bad ground and power to coils and that's why i was getting blowout. i've installed much bigger wires and car looks perfect. just needs dyno for more extended tuning.

also did everything as pictured in your post. that's my log(4.rar). boost about 1.7 bar with no problem. goal is 2-2.5

there are just 1,2 and 3 gear. no good roads for more speed

just one problem. not shows vehicle speed :/

i've connected speed wire from cluster to DI 1. any ideas why it not works? it worked ok on megasquirt :/

p.s one more problem. battery voltage looks to be low at boost. drops to 12.95 . no chance ecu to turn off engine fan after 5000 rpm or so? i use electronic fan, it should use much power i think.

4.rar

[Dave Kriedeman]

Hi,

I have attached 2 examples of fan control.

The first which is a simple GP OUTPUT to control a fan relay would be the best and easiest option for you.

The 2nd option in have setup the fan control as aux 8 PWM so I can show both options on the same page.

The PWM output control would be better suited to a fan speed controller type setup, 50% half speed,100% full speed etc.

As for the DI1 SPEED not working, try PULL UP RESISTOR ON, ACTIVE EDGE FALLING, PULL UP RESISTOR OFF, ACTIVE EDGE RISING.

Regards

Dave.

Just realised that switch conditions for AUX 7 should be 1 and 2 and 3, not 1 and 2 or 3, or your choice of logic.

You can also use different switch conditions if you wish, I just chose these 3 for an example.

[Dave Kriedeman]

Hi, can you please post your current PCL file you are using now.

Thanks

Regards

Dave.