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Toyota Prado Recall (Code GGG38) ECM Reprogram

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  • #16
    Had mine done today. Fuel economy did seem better on the way home. Was averaging 11.8 city traffic, but got 9.8 on the 20km drive home, which included some full throttle traffic light take offs.
    2016 Crystal Pearl Auto VX 2.8, TJM Bar, Safari Snorkel, Cooper AT/3, OME 50mm lift, Dual batts

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    • #17
      Sounds promising please keep us posted of fuel figures over the first full tank

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      • #18
        Pre new DPF ave 11.5 and climbing. New DPF first tank 10.32l/100km and looking to be just under 10 for second currently sitting on 9.9l/100km. I have seen low 5's while cruising at 70km/h. Cruising freeway at 100km/h uses 7.6l/100km at the moment.
        2018 150 Series Crystal Pearl Prado VX 2.8l. 2 inch King springs and Bilstein shocks, Airtek TJM snorkel.

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        • #19
          My 3L used 8.3 on hwy average. Instant freq sat in 7s. I got 1600km from those tanks.


          Sent from my iPhone using Tapatalk
          [CENTER][B]-=2014 GXL D4D Auto Graphite, Firestone Airbags, ARB/Optima D34 Dual Battery, ARB UVP, TJM Airtech Snorkel[/B][B]=-[/B]
          [/CENTER]

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          • #20
            Originally posted by Symo View Post
            My 3L used 8.3 on hwy average. Instant freq sat in 7s. I got 1600km from those tanks.


            Sent from my iPhone using Tapatalk
            Wow, I never got the range indicator to go beyond 1430 when refilling.
            D4D. How long will it last?

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            • #21
              Just had the 1 year /20000km service [ at 10000km!]. I specifically asked them to do the DPF update and it was done. According to the service bloke, issues with the DPF revolve around the front of the DPF. Apparently it was not getting sprayed enough diesel to burn off the crud. The update changes the spray pattern to make sure that the front does get sprayed properly. He also said the problems were showing up in those towing long distances so the build up of crud didn't get cleared. The explanation makes sense. Time will tell.

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              • #22
                I'm guessing they were referring to the volume the injector sprays out, cant see how software would alter the shape of the injector nozzle to change the spray patten.

                I've had the update too now and going by my ODO I'm due for a burn in the coming days so looking forward to seeing if there is any difference to the burn duration.
                Cheers
                Micheal.

                2008 GXL D4D Auto. GOING... GOING... GONE
                2015 GXL 1GD Auto. And it begins again...

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                • #23
                  He also mentioned that there were a few fuel economy issues with the DPF which this update is supposed to address. Hmmmm.... I will fill up tomorrow and see if a difference shows up on the next tank.

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                  • #24
                    Hey there,
                    I'm getting a little confused. Does the ECU upgrade have an effect on fuel economy or is that just the DPF replacement. It looks like everybody is talking about 2 different issues, or maybe they are related, I don't know anymore!!!!!!!! We have a 2016 Kakadu and we don't generally get too much better than 10L/100km on a trip, generally 10.4 and 12-14 around town.

                    Thanks for your help
                    Paul

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                    • #25
                      The service guy said the update should help the fuel economy. The jury is out.

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                      • #26
                        I'm a bit hesitant as well , If you have to spray extra fuel to burn off the crud then how can it help the fuel economy?

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                        • #27
                          Originally posted by nudgebar View Post
                          I'm a bit hesitant as well , If you have to spray extra fuel to burn off the crud then how can it help the fuel economy?
                          Made a huge difference for me. Probably 1 to 1.5l/100
                          2018 150 Series Crystal Pearl Prado VX 2.8l. 2 inch King springs and Bilstein shocks, Airtek TJM snorkel.

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                          • #28
                            Originally posted by 404pug View Post
                            The service guy said the update should help the fuel economy. The jury is out.
                            I had mine done yesterday, previously could not get under 12l /100 city and about 10-11 highway (2016 GXL Diesel auto), so I'm hoping it helps. I mentioned the fuel economy was bad and the dealer said to keep a log of klms and l/100 which I do anyway.

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                            • #29
                              I had the update done today, I was advised that it probably won't make much difference to my vehicle.

                              It was an update for vehicles with DPF issues.

                              My fuel usage is currently 9.9L/100km after 12,000km, with mostly city driving.

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                              • #30
                                Originally posted by wanted View Post
                                Wow, I never got the range indicator to go beyond 1430 when refilling.
                                It wasn't the range indicator it was how far I drove (twice) before I filled up, I drove 100km past the fuel light too (140L).

                                I took a photo somewhere at half way 800km down and DTE said 800km to go. Started at about 1400 from memory.


                                Sent from my iPhone using Tapatalk
                                [CENTER][B]-=2014 GXL D4D Auto Graphite, Firestone Airbags, ARB/Optima D34 Dual Battery, ARB UVP, TJM Airtech Snorkel[/B][B]=-[/B]
                                [/CENTER]

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