Those who run LPG converted 2.2's

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  • diesel des
    S2Forum Possessed
    • Feb 2004
    • 3896

    #481
    The pressure will drop slightly but should still be liquid at that point. If it's vapour then it's expanding some place and that could be a restriction.

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    • hunker7
      S2Forum Possessed
      • Mar 2014
      • 3487
      • Home: Latvia Current: United Kingdom

      #482
      I did add a rubber pipe at the end which is higher ID so I can point it away from the car, so that could explain that?
      '93 Audi 100 Avant - R.I.P
      '92 Audi UrS4 Avant - SOLD
      '93 Audi UrS4 Avant
      '15 Audi A7 quattro 3.0 TDI

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      • hunker7
        S2Forum Possessed
        • Mar 2014
        • 3487
        • Home: Latvia Current: United Kingdom

        #483
        Would a failed DV mess with LPG?
        '93 Audi 100 Avant - R.I.P
        '92 Audi UrS4 Avant - SOLD
        '93 Audi UrS4 Avant
        '15 Audi A7 quattro 3.0 TDI

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        • hunker7
          S2Forum Possessed
          • Mar 2014
          • 3487
          • Home: Latvia Current: United Kingdom

          #484
          ..or an air leak? I'm also thinking of pulling multivalve and checking for blockages, doubt it, but don't know what else to look at. Then again what could be blocking it? if there was a blockage, would pressure at reducer drop when it goes lean?
          Last edited by hunker7; 9 September 2016, 22:03.
          '93 Audi 100 Avant - R.I.P
          '92 Audi UrS4 Avant - SOLD
          '93 Audi UrS4 Avant
          '15 Audi A7 quattro 3.0 TDI

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          • diesel des
            S2Forum Possessed
            • Feb 2004
            • 3896

            #485
            Yes pressure would drop

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            • hunker7
              S2Forum Possessed
              • Mar 2014
              • 3487
              • Home: Latvia Current: United Kingdom

              #486
              Pressure doesn't go below 1 bar under boost. So there are no problem upto the inline sensor?
              '93 Audi 100 Avant - R.I.P
              '92 Audi UrS4 Avant - SOLD
              '93 Audi UrS4 Avant
              '15 Audi A7 quattro 3.0 TDI

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              • diesel des
                S2Forum Possessed
                • Feb 2004
                • 3896

                #487
                Yep. Has the Motronic reduced it pulse time?

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                • hunker7
                  S2Forum Possessed
                  • Mar 2014
                  • 3487
                  • Home: Latvia Current: United Kingdom

                  #488
                  I will go out tonight and get dad to see what happens with lpg times and petrol times, as they should be about the same shouldn't they?
                  '93 Audi 100 Avant - R.I.P
                  '92 Audi UrS4 Avant - SOLD
                  '93 Audi UrS4 Avant
                  '15 Audi A7 quattro 3.0 TDI

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                  • diesel des
                    S2Forum Possessed
                    • Feb 2004
                    • 3896

                    #489
                    Yes Motronic times should be the same on Lpg and petrol.

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                    • hunker7
                      S2Forum Possessed
                      • Mar 2014
                      • 3487
                      • Home: Latvia Current: United Kingdom

                      #490
                      I'll go out and check, then report back
                      '93 Audi 100 Avant - R.I.P
                      '92 Audi UrS4 Avant - SOLD
                      '93 Audi UrS4 Avant
                      '15 Audi A7 quattro 3.0 TDI

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                      • hunker7
                        S2Forum Possessed
                        • Mar 2014
                        • 3487
                        • Home: Latvia Current: United Kingdom

                        #491
                        Here is a video of the injector times. stops at 12ms and just doesn't increase.

                        '93 Audi 100 Avant - R.I.P
                        '92 Audi UrS4 Avant - SOLD
                        '93 Audi UrS4 Avant
                        '15 Audi A7 quattro 3.0 TDI

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                        • diesel des
                          S2Forum Possessed
                          • Feb 2004
                          • 3896

                          #492
                          Increase the part in your map with a point near 14ms on petrol and 12 on gas. Add 10% and test

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                          • hunker7
                            S2Forum Possessed
                            • Mar 2014
                            • 3487
                            • Home: Latvia Current: United Kingdom

                            #493
                            So that would be the 12.9 point in #468 on page 32?
                            '93 Audi 100 Avant - R.I.P
                            '92 Audi UrS4 Avant - SOLD
                            '93 Audi UrS4 Avant
                            '15 Audi A7 quattro 3.0 TDI

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                            • diesel des
                              S2Forum Possessed
                              • Feb 2004
                              • 3896

                              #494
                              Yes both the 12.9 and the 14.3 points

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                              • hunker7
                                S2Forum Possessed
                                • Mar 2014
                                • 3487
                                • Home: Latvia Current: United Kingdom

                                #495
                                OK it's about the same now. Increased both points by 15% but still goes lean? Ms are about the same for both at the point where it stops.
                                '93 Audi 100 Avant - R.I.P
                                '92 Audi UrS4 Avant - SOLD
                                '93 Audi UrS4 Avant
                                '15 Audi A7 quattro 3.0 TDI

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