Toyota Prado Recall (Code GGG38) ECM Reprogram

[Samo86]

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?

[wanted]

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.

[OzDriver]

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.

[Faulco]

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.

[OzDriver]

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.

[cuda]

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

[prodoco]

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

[Phs]

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

[Symo]

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.


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[prado R83D]

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.

[Micko2005]

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.

[cuda]

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

[nudgebar]

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?

[404pug]

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

[IBoughtAPrado]

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