Those who run LPG converted 2.2's

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

    #226
    I tried messing with 2nd and 3rd points and it's nothing and then suddenly it starts shaking
    '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

      #227
      Also swith over to gas is nice and smooth, gas to petrol rpm jumps up is that OK?
      '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

        #228
        Was filling her up today, and when i removed the filler there was gas coming out of the filling point?

        Looking at booking safety test in next week, can that be done at any company that does lpg fitting?
        '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

          #229
          Some small amount of gas will come out at full up that's normal. You need to talk to the Lpg assessor to see if he is happy to test your car.

          At light loads your Motronic runs closed loop so small changes of the gas map will not appear to do anything. But the goal is to try and get Motronic adaption to zero with no adaption limit errors.



          Sent from my LG-H955 using Tapatalk

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          • diesel des
            S2Forum Possessed
            • Feb 2004
            • 3896

            #230
            The rpm jumping is likely to be due to mixture adaption taking a while to catch up. Have you the lambda connected yet? That would help You see if it's going rich or lean when it switches.

            Sent from my LG-H955 using Tapatalk

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            • diesel des
              S2Forum Possessed
              • Feb 2004
              • 3896

              #231
              Show a pic of your map now.

              Sent from my LG-H955 using Tapatalk

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

                #232
                Originally posted by diesel des
                Some small amount of gas will come out at full up that's normal. You need to talk to the Lpg assessor to see if he is happy to test your car.

                At light loads your Motronic runs closed loop so small changes of the gas map will not appear to do anything. But the goal is to try and get Motronic adaption to zero with no adaption limit errors.

                Sent from my LG-H955 using Tapatalk
                I'll call some places near me on Monday than and see who could get her tested

                Originally posted by diesel des
                The rpm jumping is likely to be due to mixture adaption taking a while to catch up. Have you the lambda connected yet? That would help You see if it's going rich or lean when it switches.

                Sent from my LG-H955 using Tapatalk
                On gas petrol injector ms is 2.5ish and when I switch to gas it jumps to 3.2, so I just need to get them both matched and that should take care of that. I've connected lambda, but honestly that thing is all over the place on idle, can't really tell much.

                Originally posted by diesel des
                Show a pic of your map now.

                Sent from my LG-H955 using Tapatalk
                I'll get that tomorrow, as it's pissing down atm
                '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

                  #233
                  Ok your mixture on idle is also too rich. Bring it down some and try again.

                  At least the car is driving ok for you on gas now and just needs fine tuning.

                  After making adjustments to the modeling you should really clear the points it has gathered and reset the petrol ecu so it can learn new points with no adaption.

                  Sent from my LG-H955 using Tapatalk

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

                    #234
                    Originally posted by diesel des
                    Ok your mixture on idle is also too rich. Bring it down some and try again.

                    At least the car is driving ok for you on gas now and just needs fine tuning.

                    After making adjustments to the modeling you should really clear the points it has gathered and reset the petrol ecu so it can learn new points with no adaption.

                    Sent from my LG-H955 using Tapatalk
                    Sorry meant to say on gas petrol ms is 2.5 and when I switch to petrol it jumps to 3.2.

                    Clear the map points? I think it asks to clear both gas/petrol map after changes are made. So when I'm done with modeling part I just reset petrol ECU so it can learn it all again?
                    '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

                      #235
                      Yep that's it. Each time it gets closer to exactly were it should be.

                      Sent from my LG-H955 using Tapatalk

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

                        #236
                        This is how it looks like at the moment.

                        '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

                          #237
                          And how is it driving? Motronic happy yet?

                          Sent from my LG-H955 using Tapatalk

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

                            #238
                            Originally posted by diesel des
                            And how is it driving? Motronic happy yet?

                            Sent from my LG-H955 using Tapatalk
                            Feels very good. Boosts just fine, idle is pretty good, feels better than petrol if I'm honest. Still need to get petrol ms to stay the same when switching over, currently when running on petrol it's 3.1 and when on gas it's 2.1, so it shakes when switching back to petrol.

                            If I leave it as it is now, can it do any damage? I have exams coming up and final project to finish and don't have loads of time on my hands
                            '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

                              #239
                              It should be fine. Don't be doing any 24 hour endurance races.

                              Sent from my LG-H955 using Tapatalk

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

                                #240
                                Originally posted by diesel des
                                It should be fine. Don't be doing any 24 hour endurance races.

                                Sent from my LG-H955 using Tapatalk
                                Not planning on. Couple of hours drive at the time max
                                '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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