Vems Hard Start Problem

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  • KRIENG
    S2Forum Fanatic
    • Apr 2009
    • 68
    • Country: Thailand

    #1

    Vems Hard Start Problem

    0.5 Sec ( 3.49-4.03 ) Sec In data log

    Please advise me.
    Attached Files
  • cooperquattro
    S2Forum Maniac
    • Jan 2011
    • 815
    • Country: United Kingdom

    #2
    you using 1.1.96?? this has a known cam sync issue on start up

    Comment

    • KRIENG
      S2Forum Fanatic
      • Apr 2009
      • 68
      • Country: Thailand

      #3
      Fixed down to 1.1.95

      Thank You all

      Comment

      • Wrath
        S2Forum Maniac
        • Jan 2011
        • 779
        • Country: Sweden

        #4
        Im using 1.1.96 myself and i think it takes a little longer then with the motronic, what are your symptoms? Was hoping to test the 1.1.95 but the 1.1.99 is coming soon and then the problem should be gone...
        1995 Audi S6 - AAN (~350hp)
        2008 BMW 530xd (235hp)
        2008 Hyundai i30 - 1.6 CRDI (89hp)
        2011 KTM 990 SMR - custom tuned (120whp)

        Comment

        • Billman
          S2Forum Freak
          • Nov 2004
          • 4129

          #5
          I dont have any/many issues with 1.1.96. Starting took a little longer but it is much better with changed settings.
          Go Holset or Go RS4

          Comment

          • Wrath
            S2Forum Maniac
            • Jan 2011
            • 779
            • Country: Sweden

            #6
            okey, my starts in 2 engine turns or how you say so i guess that´s kinda normal...
            1995 Audi S6 - AAN (~350hp)
            2008 BMW 530xd (235hp)
            2008 Hyundai i30 - 1.6 CRDI (89hp)
            2011 KTM 990 SMR - custom tuned (120whp)

            Comment

            • Jamo
              Retired OG Mod
              • Mar 2004
              • 21750
              • Country: United Kingdom

              #7
              No difference between 1.1.96 and 1.1.95 to the Audi install hence I don't run it, waiting for 1.1.99 or whatever the next release is

              Comment

              • Wrath
                S2Forum Maniac
                • Jan 2011
                • 779
                • Country: Sweden

                #8
                My tuning guy said that all the Audi car he has tuned start´s quicker with 1.1.95 firmware then the 1.1.96 but he told me to wait for the 1.1.99 that´s around the corner...
                1995 Audi S6 - AAN (~350hp)
                2008 BMW 530xd (235hp)
                2008 Hyundai i30 - 1.6 CRDI (89hp)
                2011 KTM 990 SMR - custom tuned (120whp)

                Comment

                • Jamo
                  Retired OG Mod
                  • Mar 2004
                  • 21750
                  • Country: United Kingdom

                  #9
                  They will do as 1.1.96 has a bug in it

                  Comment

                  • KRIENG
                    S2Forum Fanatic
                    • Apr 2009
                    • 68
                    • Country: Thailand

                    #10
                    same setting 1.1.96 take 0.5 sec - 0.8 sec (170 to 405)
                    1.1.95 take 0.3 sec (198 to 503)

                    base time count by RPM >150 to RPM > 300

                    Comment

                    • Billman
                      S2Forum Freak
                      • Nov 2004
                      • 4129

                      #11
                      [1.1.99] - NOT released (only for testing, eg. Fero's Nissan 360 tooth !)

                      test results welcome, of course
                      recommended to verify wbo2 free-air calibration and check nernst voltage is appr. 4.5V (0.45V above pump-)
                      Go Holset or Go RS4

                      Comment

                      • Wrath
                        S2Forum Maniac
                        • Jan 2011
                        • 779
                        • Country: Sweden

                        #12
                        1995 Audi S6 - AAN (~350hp)
                        2008 BMW 530xd (235hp)
                        2008 Hyundai i30 - 1.6 CRDI (89hp)
                        2011 KTM 990 SMR - custom tuned (120whp)

                        Comment

                        • popdemonic
                          S2Forum Extremist
                          • Dec 2007
                          • 1304
                          • Country: Thailand

                          #13
                          Down to 1.195 cranking is shorter than 1.1.96 .i tested it today.it just takes slightly longer than moronic.i will try to tweak ve and timing a bit for a better result.
                          one of a few I5 from Asia.

                          Comment

                          • KRIENG
                            S2Forum Fanatic
                            • Apr 2009
                            • 68
                            • Country: Thailand

                            #14
                            Originally posted by Billman
                            [1.1.99] - NOT released (only for testing, eg. Fero's Nissan 360 tooth !)

                            test results welcome, of course
                            recommended to verify wbo2 free-air calibration and check nernst voltage is appr. 4.5V (0.45V above pump-)
                            means calibrate WBO2 again when downgrade to 1.1.95 ?

                            "nemst" voltage I don't understand please tell me more.

                            Comment

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