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Toyota Prado Recall (Code GGG38) ECM Reprogram

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  • #31
    Originally posted by IBoughtAPrado View Post
    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
    Figures seem ok,

    The issues lies with the DPF not clearing properly after a burn it then becomes a dominoe effect.
    dPF is a major restriction the more it blocks the more fuel usage goes up

    Comment


    • #32
      Does anyone notice the DPF regeneration process takes longer to finish after GGG38 ECM Reprogram?
      2 weeks ago when the car stopped at traffic light I aware the DPF regeneration was in process of burning ash (900 RPM), I drove another 30km mixed highway and city 50/50 about 45 mins, when I arrived my garage the process was still on.
      Today I drove 100km to the beach (80% highway), about 15KM away from the destination I aware the DPF burning was in process, and when I reached the beach car park entry point the process was still on . Just bad luck when you 4WDing the DPF burning was there. I drove the car at 2200RPM around 30KM/H mark for 45 mins the DPF regeneration was finally done. Total time DPF regeneration time was approximately 1Hour10Mins. I haven’t experienced this long processing time before GGG38ECM.

      Cheers
      2015 Prado 2.8 D4D

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      • #33
        Originally posted by prodoco View Post
        Does anyone notice the DPF regeneration process takes longer to finish after GGG38 ECM Reprogram?
        2 weeks ago when the car stopped at traffic light I aware the DPF regeneration was in process of burning ash (900 RPM), I drove another 30km mixed highway and city 50/50 about 45 mins, when I arrived my garage the process was still on.
        Today I drove 100km to the beach (80% highway), about 15KM away from the destination I aware the DPF burning was in process, and when I reached the beach car park entry point the process was still on . Just bad luck when you 4WDing the DPF burning was there. I drove the car at 2200RPM around 30KM/H mark for 45 mins the DPF regeneration was finally done. Total time DPF regeneration time was approximately 1Hour10Mins. I haven’t experienced this long processing time before GGG38ECM.

        Cheers
        What I have noticed is an increase in the time that a burn takes also. What I also have noticed is that even though the car is running at 900RPM it doesn't necessarily mean that fuel is being used to run the burn. I watched a few times the temp shift between 550 and 600 deg and just before the burn is complete the temp raises to near on 700deg. If you leave the vehicle idling while this is occuring the burn may stop until you are driving hard again.

        It definitely has changed in its behaviour but what I also noticed was it uses far less fuel.

        Thanks
        Cuda
        2018 150 Series Crystal Pearl Prado VX 2.8l. 2 inch King springs and Bilstein shocks, Airtek TJM snorkel.

        Comment


        • #34
          Despite a service due in 2 months, my dealer has recommend to get it updated asap (takes 20-30 mins). I have booked it in for this week.
          The longer burn could be that it needs to do one or two more intensive burns under the new program in order to 'catch up' before it settles down (when my car was new it even prevented 5th/6th gears for a while, but not now). Time will tell.

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          • #35
            I had mine done last week. I don't get my car serviced at the dealership because I am just too far away and for that reason had to wait there while the mod was done. There was no problem booking in and I was back on the road in under an hour. But when asked what the recall was all about it was, cough cough, "it's not really a recall, Toyota just changed a few ones and zeros in the ecu code and as a courtesy have invited owners back for the update". Yeah right, anyway the vehicle seems to drive the same but the fuel economy has improved.

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            • #36
              This all reminds me of when I needed to de-coke the exhaust of my 2 stoke moped on a regular basis! But that was several decades ago.

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              • #37
                Originally posted by OzDriver View Post
                This all reminds me of when I needed to de-coke the exhaust of my 2 stoke moped on a regular basis! But that was several decades ago.
                'Moped' that is work I have not heard in decades. Fun days, 2-stroke engines, none of this EGR BS, just pure Castrol 2T additive smoke flowing through the system! And yes cleaning was fun too.
                D4D. How long will it last?

                Comment


                • #38
                  Originally posted by 120D4D View Post
                  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.
                  How can you tell when its due for a burn? Is it every 300kms?

                  Comment


                  • #39
                    Historically mine has completed a burn around every 260 - 280kms, though on a trip or towing throws that out slightly.
                    Cheers
                    Micheal.

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

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                    • #40
                      The car seems to hold gears longer and for some odd reason seems to be smother at changing cars. The clunk is gone for now.

                      Comment


                      • #41
                        Originally posted by Samo86 View Post
                        How can you tell when its due for a burn? Is it every 300kms?
                        I'm curious too, how do you know when it is doing a burn or if it has done one. I'm about 500klm after the remap and have not noticed any change in fuel consumption. Still pretty high 11.7l/100 with about 160ks highway driving.

                        Comment


                        • #42
                          My trip computer has changed the range after filling up and driving 2-3 km after the update

                          Comment


                          • #43
                            Originally posted by skirulz View Post
                            My trip computer has changed the range after filling up and driving 2-3 km after the update
                            it finally reset after 5 kms.

                            Comment


                            • #44
                              Any reports of fuel economy after update ?

                              Comment


                              • #45
                                I need to get this update done at my first service. Hope it improves the fuel economy, I can't seem to get below about 12.5/100km, but only 6000km so the motor probably still needs to loosen up.

                                Comment

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