NefMoto

As described in this topic, http://nefariousmotorsports.com/forum/index.php?topic=12051.0title=, I would like to know if it is possible to run ME7.5 "at full power" without camshaft sensor. Will DTC erase be enough to disable limp mode and how the missing camshaft sensor will affect proper running of ME7.5?

I think its there for sequential fuel.. Can you even start the car without it ?  Are you going to use the ECU on a diffrent engine?

You need a standalone ECU if you don't want to use the original one.
Also, camshaft sensor is needed for phasing!

How would it know which phase the engine is in otherwise?

I mean technically, you can run batch fuel and wasted spark, but the ECU is not meant to do that.

@Jim - yes, indeed, as stated in link, I am planning to use this ecu on Opel 2.0T.

It takes little bit longer to start the engine without camshaft sensor, but it starts. Just that you have limp mode and limp RPM limit @4000rpm, if I am not mistaking.

@prj - I will not use a stand alone ecu, there is no challenge in installing+using stand alone, more than this, when I initially got the car, ex owner fitted Haltech Platinum...it was the first thing to remove before fitting back Me1.5.5 original ecu and restoring the original wiring. I specifically want to convert to ME7.5 for several reasons.

Today I think I may have found a way to mechanically reproduce 1.8T cam trigger pattern on the original Z20LET cam trigger. I guess this cam trigger cannot be changed in ME7.5, as same as the crank trigger offset cannot be changed. So probably I must  find a way to solve this camshaft trigger issue just mechanically.

Why not run an Opel 2.0T Me7.6?  Same tuning as Me7.5 :)   

Why not just fit a cam sensor?

i think because need modification the cams

(http://3.bp.blogspot.com/-oMLYSPgXIdo/T8pyU1KKuII/AAAAAAAAAPQ/cKLokDbk7F0/s640/IMG02093-20120525-1436.jpg)

Ah now i understand you are going to put it ON an 2.0T not an 1.8T in an opel :)  intressting,, im building an Mercedes 190 with an 2.2 x22xev ecotech... I will run SAAB Trionic 5 on that.. But if you get me7.5 working im intressted :)

There are 2 diffrent trigger wheels.. the one to the left is whats on my Me7.5 Does the crank trigger wheel line up the same as OPEL?  60-2 with VR trigger.. I think Ecotech uses a HALL sensor?
(http://funksoulkitty.org/shockypage/8engineswap/med2cpstw3.jpg)

Hers my project.. im intressted in what you come up with, If you got this to work im very intressted :)

(http://i705.photobucket.com/albums/ww58/JimCoupeTQ/IMG-20160618-WA0027.jpg)

Where there is a will, there is a way.

On the timing belt cover you could make the cam sensor, and mount the trigger wheel on the cam gear with the bolt that goes in the camshaft.

Glad I've finally got your interest. :)

ME7.6.2 is not wideband - and harware is weak (hybrid ecu), same as in Me1.5.5 - often causing ECU failure.

Yes, I am trying to convert 2.0T from Opel to ME7.5 electronics.

The crank trigger wheel is easy job. Either drill new hole in the block and fit the sensor in same position as in 1.8T, or turn the trigger wheel in relation to the crankshaft - offset is different in 1.8T (22teeth) compared to 2.0T (16 teeth)

We cannot install the camshaft onto the timing belt cover, it's made from plastic, it moves, it's not tight, not precise, so no solution.

What I am thinking right now is reproduce the 1.8T camshaft trigger pattern on the 2.0T camshaft sprocket, which has the role of being camshaft trigger at same time. The pattern is different, 1.8T has 4 teeth, while the 2.0T is half full/half empty.

More than this, camshaft trigger is located on the exhaust cam (Opel), while in 1.8T is on the intake cam.

If someone with 1.8T having no VVT (but mechanical tensioner) could tell us the precise points the sensor reads on camshaft trigger for each cyl 1-2-3-4 at TDC, it can be easily reproduced on the Opel trigger wheel.

I've recently sold my 1.8T BAM S3, which had mechanical chain tensioner fitted on AEB head instead of classic VVT, but at that moment I had no interest in doing these measurements. I think I must get in touch with new owner to ask him to allow us to make the tests.

Drill in the block and fit the sensor hmmm.. That not JUST to drill... You need it t be in exakt length in mm from the trigger whell aswell..  Does Me7.5 have a "Global Ignition angles Offset faktor..  Then you can use stock VR sensor... Just edit globa faktor for ing and strobe the engine. For the cam sensor I agree its hard to use the timing belt cover..  What about drilling into the head an use an M10 industrial hall sensor that triggers on the cam shaft. maybe there is a way to but that cam wheel inside the head around the camshaft. or reconstruct that wheel some how..


Anyone here knows if Me7.5 have Global ign offset factor?

Drill a hole and tap it..  Weld some metal on the cam shaft to copy the Me7 cam trigger. Take a metal pipe chopp it upp and copy the exak pattern as trigger. How exakt it must bee i have no idea..

(http://www.stemsrl.it/images/prodotti/D081.jpg)

could this work?

Sorry wrong pic... this i mean.. Or maybe drill into valve cover.. les oil will drain out...

Yes, also thought about this as this is the way ithe cam trigger is installed on 1.8T, on opposite side of the camshaft sprocket.

But most elegant way would be to actually modify the 2.0T cam trigger to fit the shape of 1.8T one and thus providing proper signal and then use original Z20LET sensor wired according to ME7.5 wiring, they should be the same. The crank sensors are the same, as far as I can see them next to each other.

As far as I know and I asked, there is no (easy) way to modify the global crankshaft trigger offset inside the file.

Where is the camtrigger located on Z20let  i have x22xe i havent even looked for it yet.

It's on backside of exhaust cam sprocket.

Ok could it be possible to use that and modify it, you think?  Im also very intressted in this for my trackday MB190..

How do you do with the throttlebody and the pedal position sensor?  Are the opel TB and Pedal sensor the same?

Sounds like a lot of effort for a car that will be used on Track days? 

What's wrong with a standalone?  It's FAR better suited for any of this over ME alone for the fact for better data logging capabilities

True.. To be honest have´nt decided yet.. I have been running VEMS b4 and its nice.. But this car is supposed to bee a low budget challenge. I have a lot of Me7.5 ECU stuff and harnesses already. Trionic 5 i also in my mind. But it can also end up with a VEMS. But an OEM ECU would be cool :)  I have a lot of time but budget is extremly low right now.

We'll use me7 compatible throttle and same accelerator pedal from opel, but recalibrated inside the file, to avoid fitting vw pedal as different hardware.

https://www.facebook.com/cabromotor/videos/437406089945642/

(https://cdn.meme.am/instances/400x/39849208.jpg)

How do you mean recalibrate it inside the file?

Opel pedal has same 6wire/2traces design, probably different impedance compared to 1.8T pedal, and this can be compensated I guess via tuning.

Any progress with this?