ST205 Posted April 29, 2020 Report Share Posted April 29, 2020 (edited) Hi, We have installed the link g4+ plugin for m50tuB25 engine (and ofcourse converted the harness to suit all in/outputs for S50B32 + diode removal vanos). The thing is that we got the car up and running and vanos on exhaust side is working perfect. However, we get errors on the intake vanos. What happens is that the Intake position switches from 0° to around 66° and back when it sees a target value of >0°. (Almost as if it drives the solenoid the opposite direction). Possible solutions we have already tried ourselves: Reversing polarity Vr-sensor intake Reversing outputs Retard and Advance Rechecked the wiring New attempt on Cam test angle (switched back off afterwards) Attached are: Log file Trigger scope Map Any suggestions on whats causing this? (The car is still on the dyno so any help/tips would be greatly appreciated!) Edited May 1, 2020 by ST205 Not enough upload capacity Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 29, 2020 Report Share Posted April 29, 2020 When you do the cam angle test on the LH inlet, using a test pulse count of 6, are the reported cam angle numbers reasonably stable - say within 1 or 2 deg? Can you note down those numbers and list them here. The cam angle numbers that where showing when you saved the tune are a bit odd in that 3 of them are the same number. I dont see too much else wrong in your setup. Quote Link to comment Share on other sites More sharing options...
ST205 Posted April 30, 2020 Author Report Share Posted April 30, 2020 (edited) Hi adam, The cam angle numbers are stable within 1-2°(img_0046) but every once in a while (assuming when cam error occurs) it loses this position (img_0047). I assumed that the "S52 cam control mode" is usable for the S50B32 euro (with reference to last page of this topic Is it possible that i made the wrong assumption and a custom cam control mode has to be made? Edited May 1, 2020 by ST205 Not enough upload capacity Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 30, 2020 Report Share Posted April 30, 2020 Ok, I had a play around on the simulator with your tune and compared it to the S52 pattern. Your trigger pattern matches pretty well (6+1 teeth on exhaust and 6 evenly spaced on intake), but there is a small difference somewhere that is upsetting the sync, Im not sure if its the trigger offset (position of crank gap) or position of the cams but your cam teeth angles are way different. I set up the simulator to duplicate the triggerscope you attached earlier and the intake cam angles in the pic above. To make the VVT system happy I had to change the offset on both cams by 1 tooth (120deg). So try your Exhaust cam offset (trigger 2 VVT settings) at 150 ATDC, and set your DI2 offset to 166ATDC. Report back how that goes. Quote Link to comment Share on other sites More sharing options...
ST205 Posted April 30, 2020 Author Report Share Posted April 30, 2020 (edited) Hi adam, Tahnks for the prompt reply! I have entered the suggested values (150° DI2 and 166° Trigg2) but the problem still persists (as seen in video attached) I will check all vanos related wiring (again). Other than that i'm running out of ideas... Edited May 1, 2020 by ST205 Not enough upload capacity Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 30, 2020 Report Share Posted April 30, 2020 Can you confirm that the exhaust cam position is now steady and not bouncing around like it was in the last log. In my testing this upsets the sync of the intake cam, so I think we we need to get the exhaust stable first. Quote Link to comment Share on other sites More sharing options...
ST205 Posted May 1, 2020 Author Report Share Posted May 1, 2020 Yes, Exhaust cam position is now steady and folowing target as supposed to (attached: Log 2) (though PID may need some tweeking) (reason: I have found that the exhaust vanos(retard pin) was not in the correct plug position. Also rechecked all vanos intake wiring but did not find any deviations). What strikes me is that: The cam offset angle now changed to new values for intake (IMG0060) and exhaust (IMG0061). The cam angle values for intake are not steady while accelerating (https://drive.google.com/open?id=1a4OQEJucrvicCJOTxe8sbjLdraRMUvFq) The problem with intake cam pos still exists when cam target >1° EDIT: Forum says "attachment quota has been reached" Can you reset this? Log 2.llg Quote Link to comment Share on other sites More sharing options...
dx4picco Posted May 1, 2020 Report Share Posted May 1, 2020 55 minutes ago, ST205 said: Forum says "attachment quota has been reached" Can you reset this? No, you gonna need to use external host for futur uploads. Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 1, 2020 Report Share Posted May 1, 2020 Just watching your video, its a bit unusal that the cam drifts that much with RPM. Does it do the same with vanos solenoids unplugged? Can you try about 95 as your offset on DI2. Quote Link to comment Share on other sites More sharing options...
ST205 Posted May 2, 2020 Author Report Share Posted May 2, 2020 Adam, The cam pos also drifted when vanos unplugged but now we have a stable intake cam position (by reversing sensor polarity) . https://drive.google.com/open?id=1QG8Dq5Mok2AIxUmyj9OCoI4ycY0V8ls_ Cam offsets are now: 47° Intake 112° Exhaust However, the problem with intake cam position still exists when cam target >0° (Log attached + Video link: https://drive.google.com/open?id=1y2VY-yMnHB8_yFGu-3oZct1V08CFdmpU) ...the frustrating part about this is that it concerns a customer's car that we just can't give up on. Log_3.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 2, 2020 Report Share Posted May 2, 2020 Im lost, I cant reproduce what you are seeing here with any variation that I try. Can you try these couple of extra tests to see if it gives me any clues: Try intake offset at 27. Try intake offset at 67. Try intake offset at 120. These may show if the cam is moving backwards (maybe solenoids reversed?) Your offset of 112 on exhaust is normal (according to out s52 capture ~116). , but the intake I expect should normally be around 108. According to the help file you have the wrong solenoids connected to the wrong aux outputs, can you confirm this: Quote Link to comment Share on other sites More sharing options...
ST205 Posted May 4, 2020 Author Report Share Posted May 4, 2020 Adam, thank you for all support and patience... I can confirm that all vanos are working fine now! I have triend reversing these solenoids before (original post) but that did not gave me the right result back then.. Hence why the intake cam position was reading 47°(~108° - 60°Advance). Log 2020-05-4 12;36;18 am.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 4, 2020 Report Share Posted May 4, 2020 Ace. Looks like the PID might still need a bit of work. Why is the RPM so "lumpy", is it a fairly serious engine or is it just running like crap due to not being tuned yet? Quote Link to comment Share on other sites More sharing options...
ST205 Posted May 5, 2020 Author Report Share Posted May 5, 2020 Yes, we did some tuning on PID. It was a build engine indeed, that's mainly reason for it's lumpy lower rpm. Again thanks for thinking along Adam, project succeeded! Quote Link to comment Share on other sites More sharing options...
Snow leon Posted May 4, 2023 Report Share Posted May 4, 2023 Hello I'm facing the same problem . Link g4 plus storm engine s50b32 . Wiring as per the manual. Help plz Thank you RELUCTANT-SCOOPE.llg send-to-t.pclr RELUC-LOG.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 5, 2023 Report Share Posted May 5, 2023 I would start by setting the trigger mode to S52 and set the VVT mode to BMW Dual Vanos S52, redo the offsets. Quote Link to comment Share on other sites More sharing options...
Leonsnow Posted May 6, 2023 Report Share Posted May 6, 2023 hello way better , s52 setup inlet LH solenoid DC ERROR can you check plz thank yoou s52 setup.pclr s52 setup log 5.llg s52 log.llg s52 trigger setup.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 6, 2023 Report Share Posted May 6, 2023 On 5/5/2023 at 12:17 PM, Adamw said: redo the offsets. It looks like you havent reset the offsets. Follow the procedure below. Use a test pulse count of 7 on the exhaust cam test and a count of 6 on the intake cam test. Enter the obtained cam angle value for the exhaust cam into the "Trigger 2 VVT" menu and for the intake cam you enter it into the DI1 settings. Quote Link to comment Share on other sites More sharing options...
Leonsnow Posted May 7, 2023 Report Share Posted May 7, 2023 hello i did recalibrate the offset , still getting some errors inlet RH !!! EXH RH !!!! THE EXH IS NOT FOLLOWING THE TARGET THANK YOU IN ADVANCE test 1.pclr log test1.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 7, 2023 Report Share Posted May 7, 2023 Are you sure that is the correct map? That set back to S54 trigger mode and vvt mode. Quote Link to comment Share on other sites More sharing options...
Snow leon Posted May 8, 2023 Report Share Posted May 8, 2023 hello sir i made sure and recalibrate the offset and still counter error and exh not following the target plz may you check datalog thank you in advance log s52setup.llg test1.pclr Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 8, 2023 Report Share Posted May 8, 2023 The exhaust cam position appears to be reported correctly now. The ecu is applying maximum duty cycle to aux 3 trying to get it to retard but it is not moving. With the engine off, ignition on, do the exhaust solenoids click when you put aux 3 & 4 into test PWM mode? Have you cut the stock connectors off the vanos solenoids? Assuming they do click, is the vanos system known to be in good mechanical condition and working? For the intake cam error, can you turn off the pull-up on DI1 to see if that solves the error. Quote Link to comment Share on other sites More sharing options...
Snow leon Posted May 8, 2023 Report Share Posted May 8, 2023 I'll test aux 3 and 4 and report bk . 90% it's a mechanic issue now , maybe low oil pressure to the vanos. Will check and get to you . Thank you so much Quote Link to comment Share on other sites More sharing options...
Snow leon Posted May 8, 2023 Report Share Posted May 8, 2023 tested aux 1 one tick aux 2 nothing aux 3 nothing aux 4 ticking or buzzing yes i cut the e connector ( diode ) colors matches the manual , SAME still getting inlet error counter thank you test2.pclr pull up off log 5 deg.llg pull up off log.llg Quote Link to comment Share on other sites More sharing options...
dx4picco Posted May 9, 2023 Report Share Posted May 9, 2023 then either a wiring or a fried/unsoldered solenoid issue Quote Link to comment Share on other sites More sharing options...
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