Username or Email Address
Do you already have an account?
Forgot your password?
  • Log in or Sign up

    VWVortex


    Results 1 to 22 of 22

    Thread: Megasquirt V3 on OBDII VR6

    1. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      05-14-2012 07:24 PM #1
      Hi,
      I have never done a Megasquirt install before. I am hoping for a little help with the wiring. This is what I have so far. Does it look right? The areas with the ???? on it need confirmation. Thank you for taking the time to help...
      MS ECU pinout////////// Motrinic ECU
      2 VR (-) sensor ////////// 68 (pin 2 of crank sensor)
      3 tach////////// ??22?? (inst. cluster)
      4 spr2 ////////// ?????
      5 spr3////////// ?????
      6 spr4////////// ?????
      7-11 grounds//////////
      19 ground//////////
      20 air temp sensor////////// 36(+ air temp sensor)
      21 coolant temp////////// 14(pin 1 temp coolant temp sensor)
      22 throttle position signal////////// 40 (pin 5 of throttle body)
      23 O2 sensor (signal)////////// 20 (pin 4 of O2 harness plug)
      24 VR(+) sensor////////// 67 (pin 1 of crank sensor)
      25 ignition coil 1,6///////// ??8?? (pin 2 of coil)
      26 Throttle position sensor(+)/////////41(pin 4 of throttle body)
      27 ignition coil 2,5///////// ??52?? (pin 4 of coil)
      28 87 of main relay///////// 23 (+ pcv)
      29 ignition coil 3,4///////// ??60?? (pin 3 of coil)
      30 idle valve///////// ??53?? (pin 2 of throttle body)
      31 ground////////////
      32 injectors 1,2,3///////// ??3,24,26?? (injectors 5,1,3)
      33 injectors 1,2,3///////// ??3,24,26?? (injectors 5,1,3)
      34 injectors 4,5,6///////// ??2,4,25?? (injectors 4,6,2)
      35 injectors 4,5,6///////// ??2,4,25?? (injectors 4,6,2)
      36 ground///////////
      37 fuel pump (85 on relay)///////// 6


      Thank you,
      Larry

    2. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      05-21-2012 04:41 PM #2
      Am I asking this the wrong way, or in the wrong place? Should I form it in a different way?

      Thanks,
      Larry

    3. 05-21-2012 05:31 PM #3
      you came the the correct place. needavr6 knows more about this.

      I need to find my excel file for my pin out that, paul did.
      Racing Improves the breed..
      "I have fought the good fight, I have finished the race, I have kept the faith"- 2 Timothy 4:7
      CrossroadsLI
      MY ALL MOTOR BUILD THREAD

    4. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      05-24-2012 11:41 PM #4
      fourthchirpin
      you came the the correct place. needavr6 knows more about this.

      I need to find my excel file for my pin out that, paul did.




      Do you think he would mind if I asked him directly? Or sent him a link to this thread?

      Thanks,
      Larry

    5. 05-25-2012 12:21 AM #5
      need_a_vr6 is his sn on here. heres the megasquirt genius around here. Iam sure his beeper will go off soon at this post
      Racing Improves the breed..
      "I have fought the good fight, I have finished the race, I have kept the faith"- 2 Timothy 4:7
      CrossroadsLI
      MY ALL MOTOR BUILD THREAD

    6. Member SirSpectre's Avatar
      Join Date
      Mar 20th, 2011
      Location
      Milwaukee, WI
      Posts
      1,064
      Vehicles
      Megasquirt 3x Powered 98 Jetta GT 2.0 \ 2013 FRS
      05-25-2012 01:33 AM #6
      Do it the mans way and just run an entirely new harness But yes Paul (need_a_vr6) and Jeff (prof315) are the 2 rockstars here.
      98 Jetta 2.0 w/ Megasquirt 3/3x fully sequential

    7. Member Prof315's Avatar
      Join Date
      Jan 5th, 2009
      Location
      Melbourne, FL
      Posts
      3,253
      Vehicles
      1992 Corrado ABA and MS3-Pro powered, 84 Honda V65 Sabre
      05-25-2012 06:40 AM #7
      Let me see if I can dig up the notes on the OBD1 VR install I did (we cut the 68 pin Motronic connector off the factory harness and pinned it to a DB37). At a glance it looks like there are some things not quite right.

      2 questions though, is this a v3.0 or v3.57 mainboard? and what mods were done to it and what pins on the DB37 do they ( the mods ) go to?
      The Professor
      Melbourne, FL
      92 Corrado OBD2 ABA Powered by MS3Pro
      Linfert Performance: The Megasquirt guy in central Florida Like my Facebook page....
      Sandy Linfert 11/4/1991 - 5/13/2013

    8. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      05-25-2012 12:13 PM #8
      Yesterday 09:33 PMSirSpectre
      Do it the mans way and just run an entirely new harness But yes Paul (need_a_vr6) and Jeff (prof315) are the 2 rockstars here.

      This is for a friend. He already shaved the bay and extended the harness through the front rail. If I can confirm the pin out connections. I can do it either way, use part of his extended harness or run an entire new setup. He was specific on what the final product should look like and we will use that info to decide what way it will be wired in the end. His car his way....

      Thanks again.
      Larry

    9. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      05-25-2012 12:46 PM #9
      This ECU was built by a company called K&P performance. My friend purchased this from someone else. So I do not know how it was set up other than the diagram that came along with it.






      Thanks!
      Larry
      Last edited by Larry Horowitz; 05-25-2012 at 12:53 PM.

    10. 05-25-2012 06:40 PM #10
      Quote Originally Posted by Larry Horowitz View Post
      This ECU was built by a company called K&P performance. My friend purchased this from someone else. So I do not know how it was set up other than the diagram that came along with it.
      LOL
      Racing Improves the breed..
      "I have fought the good fight, I have finished the race, I have kept the faith"- 2 Timothy 4:7
      CrossroadsLI
      MY ALL MOTOR BUILD THREAD

    11. Geriatric Member need_a_VR6's Avatar
      Join Date
      May 19th, 1999
      Location
      Oxford, PA
      Posts
      35,158
      Vehicles
      03 325i
      05-25-2012 08:34 PM #11
      Almost definitely built for a direct spark 4cyl. What serial number is on the bottom?
      -Paul
      1995 GTI VR6 - ??.??@??? 3.6 Power - 12.90@106 R32 power - 12.833@106 12v power
      KPTuned - Official MegaSquirt: Sales - Repair - Installation - Tuning
      Build Thread: The Build Thread "Good Clean Fun"

    12. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      05-25-2012 09:02 PM #12
      need_a_VR6
      Almost definitely built for a direct spark 4cyl. What serial number is on the bottom?


      The schematic shows 6 coil outputs and 6 injectors. What would lead you to say that? The only thing that I could guess that would be a serial # is on the bottom of the box. It is K&P 2011073. Also on the underside of the upper cover it shows K&P 2011092.

      Thanks for the help!

      Larry

    13. Geriatric Member need_a_VR6's Avatar
      Join Date
      May 19th, 1999
      Location
      Oxford, PA
      Posts
      35,158
      Vehicles
      03 325i
      05-25-2012 09:55 PM #13
      I must have post modded for 3 bips, as I dont do it that way generally.

      I will try and post up stock ecu pin numbers and some ecu details this weekend.
      -Paul
      1995 GTI VR6 - ??.??@??? 3.6 Power - 12.90@106 R32 power - 12.833@106 12v power
      KPTuned - Official MegaSquirt: Sales - Repair - Installation - Tuning
      Build Thread: The Build Thread "Good Clean Fun"

    14. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      05-25-2012 10:09 PM #14
      need_a_VR6
      I must have post modded for 3 bips, as I dont do it that way generally.

      I will try and post up stock ecu pin numbers and some ecu details this weekend.


      Holy crap, I am stupid. I just put the names together.....

      Thank you VERY much,
      Larry

    15. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      05-30-2012 04:21 PM #15
      Quote Originally Posted by need_a_VR6 View Post
      I must have post modded for 3 bips, as I dont do it that way generally.

      I will try and post up stock ecu pin numbers and some ecu details this weekend.

      I am sure you are very busy. Were you able to look back and find anything?

      Thank you,
      Larry

    16. 06-05-2012 10:46 PM #16
      I bought the assembled ecu from Paul back in early 11.
      The car is now in Larry's hands and he is finishing it for me.
      Thanks for your help guys.

    17. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      06-27-2012 01:04 PM #17
      Hi again here is a revamped list. Again any help would be great! Thanks.

      DB37 pins...........................................OBD 2 T68
      2) VR sensor (-)...................................68
      3) tach.............................................. ..22
      7-11) grounds
      19)grounds........................................ .TPS,IAT,CLT (t42/26)
      20)air temp signal................................36
      21)coolant temp signal (+)....................14
      22)throttle position signal......................40
      23)O2 sensor signal..............................20
      24)VR (+) sensor.................................67
      25)ign coil 1,6......................................pin on 04 dodge 3.3 coil
      26)throttle position (12v).......................41
      27)ign coil 2,5......................................pin on 04 dodge 3.3 coil
      28)87 on main relay..............................23
      29)ign coil 3,4.......................................pin on 04 dodge 3.3 coil
      30)idle valve.........................................???? ????????????
      31) ground
      32)inj 1,2,3..........................................3,2 4,26
      33)inj 1,2,3..........................................3,2 4,26
      34)inj 4,5,6..........................................2,4 ,25
      35)inj 4,5,6..........................................2,4 ,25
      36) ground
      37)fuel pump relay 85...........................6

    18. Geriatric Member need_a_VR6's Avatar
      Join Date
      May 19th, 1999
      Location
      Oxford, PA
      Posts
      35,158
      Vehicles
      03 325i
      06-27-2012 05:38 PM #18
      27/53 for the idle valve. I think 27 is 12v feed but dont quote me on that.
      -Paul
      1995 GTI VR6 - ??.??@??? 3.6 Power - 12.90@106 R32 power - 12.833@106 12v power
      KPTuned - Official MegaSquirt: Sales - Repair - Installation - Tuning
      Build Thread: The Build Thread "Good Clean Fun"

    19. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      06-27-2012 06:27 PM #19
      Quote Originally Posted by need_a_VR6 View Post
      27/53 for the idle valve. I think 27 is 12v feed but dont quote me on that.
      Okay that is what I had had. pin 53 went to pin 2 of the TB. So It needs 12V? It was screwing me up calling it a idle valve But there was nothing closing and opening to outside air.

      Does everything else sound correct?

      Thanks again,
      Larry

    20. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      06-27-2012 06:35 PM #20
      Quote Originally Posted by need_a_VR6 View Post
      27/53 for the idle valve. I think 27 is 12v feed but dont quote me on that.
      looks like you are right. 27 (pin1) and 53 (pin2) of the TB motor



      On the schematic it shows an out board idle valve that is getting power from the main relay location 87 along with pin 28 of the DB37. So this is where I get lost. Do I just hook T68/53 to DB30. Or is there something else that is needed that I am not understanding?
      Last edited by Larry Horowitz; 06-27-2012 at 06:44 PM.

    21. Geriatric Member need_a_VR6's Avatar
      Join Date
      May 19th, 1999
      Location
      Oxford, PA
      Posts
      35,158
      Vehicles
      03 325i
      06-27-2012 09:55 PM #21
      Yes 53 would be fidle/30 and 27 would just use key on, or fuel pump triggered power.
      -Paul
      1995 GTI VR6 - ??.??@??? 3.6 Power - 12.90@106 R32 power - 12.833@106 12v power
      KPTuned - Official MegaSquirt: Sales - Repair - Installation - Tuning
      Build Thread: The Build Thread "Good Clean Fun"

    22. Member Larry Horowitz's Avatar
      Join Date
      Dec 9th, 2002
      Location
      Ventura, Ca
      Posts
      1,183
      Vehicles
      95 4dr Golf 20V, 02 TT 225, 99 Rodeo, 85 MR2, 05 S40 2.5T AWD
      06-28-2012 12:22 PM #22
      Quote Originally Posted by Larry Horowitz View Post
      Hi again here is a revamped list. Again any help would be great! Thanks.

      DB37 pins...........................................OBD 2 T68
      2) VR sensor (-)...................................68
      3) tach.............................................. ..22
      7-11) grounds
      19)grounds........................................ .TPS,IAT,CLT (t42/26)
      20)air temp signal................................36
      21)coolant temp signal (+)....................14
      22)throttle position signal......................40
      23)O2 sensor signal..............................20
      24)VR (+) sensor.................................67
      25)ign coil 1,6......................................pin on 04 dodge 3.3 coil
      26)throttle position (12v).......................41
      27)ign coil 2,5......................................pin on 04 dodge 3.3 coil
      28)87 on main relay..............................23
      29)ign coil 3,4.......................................pin on 04 dodge 3.3 coil
      30)idle valve.........................................53
      31) ground
      32)inj 1,2,3..........................................3,2 4,26
      33)inj 1,2,3..........................................3,2 4,26
      34)inj 4,5,6..........................................2,4 ,25
      35)inj 4,5,6..........................................2,4 ,25
      36) ground
      37)fuel pump relay 85...........................6
      There, that should be everthing. The plan is to use the existing tucked harness and cutting the wires from the hidden stock ecu.

      Thanks,
      Larry
      Last edited by Larry Horowitz; 07-05-2012 at 11:06 AM.

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •