Toyota Prado Recall (Code GGG38) ECM Reprogram

[Micko2005]

My auto seems pretty smooth now as I had the Auto update and the ECU at the same time. As for fuel economy its not improving.

[Wildfire]

Before the gearbox update mine used to cough is best way to describe it, going on a uphill cornering ramp to a motorway at about 60km/hr-ish on light throttle it acts like someone is hitting the clutch in and out... even though it's an auto. It's right on the gear change area. It does also surge a little at the same speed when on cruise control on flat ground but not enough to bother me. It has rarely done it since the gearbox update was done but since this recall update it's back "coughing" up to 3 times going around the bend. I think I'll have to take it back in and make sure it hasn't reverted back to the old gearbox program somehow?

[120D4D]

Ive wondered the same thing - when you say jumping around what do you mean?

Mine seems to feel like a surge/fuel pressure issue or perhaps even balance issue though I've had the tires balanced twice recently...

[Wildfire]

I had the recall update done last week, the only difference I've noticed is the issues I had with the vehicle jumping around at about 62km/hr are back. When the gearbox update came out it seemed to resolve the issue( or at least minimize it) but now after this update it's bad again. Is it possible the update has reset the gearbox program back to original?

[brogers]

Prado 150 jul 16
HAd Reprogram and engine seems to run quieter both on startup and much quiete after 2 minutes , now 8 min AS BEFORE

Please help he understand what you are saying...

now 8 min as before?
whats 8 min?

[graveller]

Prado 150 jul 16
HAd Reprogram and engine seems to run quieter both on startup and much quiete after 2 minutes , now 8 min AS BEFORE

[Phs]

The only thing I notice is a rubber burning smell coming from the rear wheel arch.

[120D4D]

You shouldn't get any smoke or noise but smell is definately noticeable if you take a whiff when it's doing a burn on the 1GD.

I thought yours fell off anyway Dave?

[Bushbasher]

Funny but in my new 79 you wouldn't even know the DPF was there. No smoke, no smell, no noise. Just did 12,500km with the DPF and the counter ranged up and down between zero and 3.

[CamJam]

Hey everyone,
Took our Prado in for the ECM update today. Told them that we had heaps of white smoke on burn and bad fuel economy. They did he ECM update and just did a burn but wouldn't replace the DPF. We will see how it goes and see if things improve. Going on a bit of a trip soon so hopefully fuel economy will be better.

That was my experience also, exactly. As you say, we'll just have to see how it goes. As an aside, although my fuel usage went through the roof to begin with, it seems to have settled around the 11.0L/100 now, with mid-10's on the freeway (bar, lift, snorkel, Platform tray).

[IBoughtAPrado]

Hey everyone,
Took our Prado in for the ECM update today. Told them that we had heaps of white smoke on burn and bad fuel economy. They did he ECM update and just did a burn but wouldn't replace the DPF. We will see how it goes and see if things improve. Going on a bit of a trip soon so hopefully fuel economy will be better.

[hergy]

At 100kmh, if you see about 2000rpm on the tach, then you are probably in 6th, but the torque converter is not locked. There was a gearbox firmware update earlier this year, but I didn't notice any change in the behaviour at highway cruise speeds.

6th gear 100kmph is 1550rpm
5th gear is 2000rpm

PE

[OzDriver]

3 weeks on from the DPF ECM recall and I am seeking roughly a 0.5 l/100 improvement (but too early to compare fully). Seems to have less throttle/turbo lag off the mark though. My 6th gear (and other auto ratio selections) has always worked as expected so I can't relate to the issues others have. I don't think that it is a core design problem but obviously not consistent. 6th gear is very high so it does tend to drop to 5th is any real demand is made. Would be nice if it had a gear indicator showing the gear in use (not just the maximum gear based on the semi-auto selection)

[120D4D]

I spoke with Toyota today and they informed me that I have not had the ECU update, only the DPF replaced. The ECU recall/update addresses the DPF not reaching high enough temperatures when travelling at high speed which in turn will cause the DPF to block up and fail early in its life. Will be interesting to see if I get further improvements after the update is done on Thursday. What I find encouraging is that my tank is only half empty at 700km.

That makes sense because I'm struggling to notice any real difference around town post-ecu update.

I did do a 400km country run and the mileage on that tank was good but i'll hold my judgement for the next tank or two...

[cuda]

I spoke with Toyota today and they informed me that I have not had the ECU update, only the DPF replaced. The ECU recall/update addresses the DPF not reaching high enough temperatures when travelling at high speed which in turn will cause the DPF to block up and fail early in its life. Will be interesting to see if I get further improvements after the update is done on Thursday. What I find encouraging is that my tank is only half empty at 700km.