https://www.dailymail.co.uk/news/article-14337589/Major-car-brand-recalls-290-000-vehicles-America-dangerous-engine-issue.html

Honda will recall 294,612 vehicles in the U.S. to fix an
issue that may cause engines to stall or suffer a loss of
power, the National Highway Traffic Safety Administration
said on Wednesday.

The recall affects certain 2022-2025 Acura MDX Type-S,
2023-2025 Honda Pilot and 21-2025 Acura TLX Type-S
vehicles.

A software error in the fuel injection electronic control
unit (FI-ECU) may cause an engine stall or a loss of power,
increasing the risk of a crash or injury, the U.S. auto
safety regulator said.

Dealers will reprogram the FI-ECU software, free of
charge, it added.

. . .

"[2033] If X>100 Goto 2033" ? :-)

You'd think they'd have this stuff down and
bullet-proof by now ....

Remember carbs and distributors ?

The software in a car "brain" these days is
probably larger and more complex than for
a Saturn probe. In short they'll NEVER get
it debugged before moving to a whole new
(buggy) system.

--
033-33

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On 30/01/2025 01:41, [email protected] wrote:

https://www.dailymail.co.uk/news/article-14337589/Major-car-brand-recalls-290-000-vehicles-America-dangerous-engine-issue.html

Honda will recall 294,612 vehicles in the U.S. to fix an
issue that may cause engines to stall or suffer a loss of
power, the National Highway Traffic Safety Administration
said on Wednesday.

The recall affects certain 2022-2025 Acura MDX Type-S,
2023-2025 Honda Pilot  and 21-2025 Acura TLX Type-S
vehicles.

A software error in the fuel injection electronic control
unit (FI-ECU) may cause an engine stall or a loss of power,
increasing the risk of a crash or injury, the U.S. auto
safety regulator said.

Dealers will reprogram the FI-ECU software, free of
charge, it added.

. . .

  "[2033] If X>100 Goto 2033" ?  :-)

  You'd think they'd have this stuff down and
  bullet-proof by now ....

  Remember carbs and distributors ?

  The software in a car "brain" these days is
  probably larger and more complex than for
  a Saturn probe. In short they'll NEVER get
  it debugged before moving to a whole new
  (buggy) system.

But by and large it is that way, and software upgrades are so simple
that the necessity of testing everything is somewhat lower.

All cars have some quirk or other that is removed in updated parts or
some such.
My [automatic] car will respond to simultaneous application of the
accelerator and brakes with a warning, disabling the anti-skid,
rendering the cruise control inoperative and shouting 'Handbrake fault' 'gearbox fault' and one other which I forget.
I have to reboot the car twice to stop all of it.

Apparently there is a brake switch update that fixes it.


--
"I am inclined to tell the truth and dislike people who lie consistently.
This makes me unfit for the company of people of a Left persuasion, and
all women"

--- SoupGate-Win32 v1.05
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On 1/30/25 4:31 AM, The Natural Philosopher wrote:

On 30/01/2025 01:41, [email protected] wrote:

https://www.dailymail.co.uk/news/article-14337589/Major-car-brand-recalls-290-000-vehicles-America-dangerous-engine-issue.html


Honda will recall 294,612 vehicles in the U.S. to fix an
issue that may cause engines to stall or suffer a loss of
power, the National Highway Traffic Safety Administration
said on Wednesday.

The recall affects certain 2022-2025 Acura MDX Type-S,
2023-2025 Honda Pilot  and 21-2025 Acura TLX Type-S
vehicles.

A software error in the fuel injection electronic control
unit (FI-ECU) may cause an engine stall or a loss of power,
increasing the risk of a crash or injury, the U.S. auto
safety regulator said.

Dealers will reprogram the FI-ECU software, free of
charge, it added.

. . .

   "[2033] If X>100 Goto 2033" ?  :-)

   You'd think they'd have this stuff down and
   bullet-proof by now ....

   Remember carbs and distributors ?

   The software in a car "brain" these days is
   probably larger and more complex than for
   a Saturn probe. In short they'll NEVER get
   it debugged before moving to a whole new
   (buggy) system.

But by and large it is that way, and software upgrades are so simple
that the necessity of testing everything is somewhat lower.

Um, not so "simple" if the thing conks out on
you in the middle of a blizzard or giant fire
evac ....

All cars have some quirk or other that is removed in updated parts or
some such.
My [automatic] car will respond to simultaneous application of the accelerator and brakes with a warning, disabling the anti-skid,
rendering the cruise control inoperative and shouting 'Handbrake fault' 'gearbox fault' and one other which I forget.
I have to reboot the car twice to stop all of it.

Apparently there is a brake switch update that fixes it.

Over-complication. Should be banned in critical systems.

It is easy to just say "software" and assume it's
all easy-peazy ... but what the software is DOING,
empowering, accomplishing, CAN be rather critical
to individuals and larger collectives.

--- SoupGate-Win32 v1.05
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[email protected] <[email protected]> wrote:

On 1/30/25 4:31 AM, The Natural Philosopher wrote:

But by and large it is that way, and software upgrades are so simple
that the necessity of testing everything is somewhat lower.

Um, not so "simple" if the thing conks out on
you in the middle of a blizzard or giant fire
evac ....

A few years ago firefighters were complaining that the new
Mercedes-Benz G-Wagons that the state forest fire service had
converted to small fire trucks were limiting speed to 40Km/hr if
their computer detected smoke.

All cars have some quirk or other that is removed in updated parts or
some such.
My [automatic] car will respond to simultaneous application of the
accelerator and brakes with a warning, disabling the anti-skid,
rendering the cruise control inoperative and shouting 'Handbrake fault'
'gearbox fault' and one other which I forget.
I have to reboot the car twice to stop all of it.

Apparently there is a brake switch update that fixes it.

Over-complication. Should be banned in critical systems.

In your original case of fuel injection mishaps, the emissions
regulations probably mean they're banned from omitting complex
computations that work out the ideal mix to make minimum CO2,
which may well have been the source of that bug.

--
__ __
#_ < |\| |< _#

--- SoupGate-Win32 v1.05
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On 1/30/25 4:15 PM, Computer Nerd Kev wrote:

[email protected] <[email protected]> wrote:

On 1/30/25 4:31 AM, The Natural Philosopher wrote:

But by and large it is that way, and software upgrades are so simple
that the necessity of testing everything is somewhat lower.

Um, not so "simple" if the thing conks out on
you in the middle of a blizzard or giant fire
evac ....

A few years ago firefighters were complaining that the new
Mercedes-Benz G-Wagons that the state forest fire service had
converted to small fire trucks were limiting speed to 40Km/hr if
their computer detected smoke.

It is so absurd that it is probably true.
Nanny states, nanny cars too :-)

Probably had to put duct-tape over some little
sensor ....

All cars have some quirk or other that is removed in updated parts or
some such.
My [automatic] car will respond to simultaneous application of the
accelerator and brakes with a warning, disabling the anti-skid,
rendering the cruise control inoperative and shouting 'Handbrake fault'
'gearbox fault' and one other which I forget.
I have to reboot the car twice to stop all of it.

Apparently there is a brake switch update that fixes it.

Over-complication. Should be banned in critical systems.

In your original case of fuel injection mishaps, the emissions
regulations probably mean they're banned from omitting complex
computations that work out the ideal mix to make minimum CO2,
which may well have been the source of that bug.

Nanny states ...

Yep, air-qual & 'economy' regs have become so absurd
in certain places the it's amazing IC engines work at
all. We remember just a couple of years ago when VW
had to install cheat-ware on their vehicles just so
they'd have enough performance to be tolerable.

Makes you want to yank out the factory engine and
shove something meant for fishing boat or whatever
in there instead.

As such I *understand* Honda's problem here, but
cannot sympathize with all that created the problem.

Likely these auto companies could profit by having
just or or two concerns make/program 'brains'.
You write almost dead-standard code you CAN debug
and then have a few variables for params specific
to the particular engine. Right now it seems like
too much of that stuff is kind of one-off, which
means never-ending issues.

I wonder how many curves have to be combined to
arrive at a here+now mix/timing solution ?

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On 31/01/2025 01:00, [email protected] wrote:

You write almost dead-standard code you CAN debug
  and then have a few variables for params specific
  to the particular engine.

That is in fact generally the case anyway

Manufacturers 'buy in' specific generic management units and customise
for the particular engine - there is a map inside detailing what to do
in various cases of airflow, exhaust oxygen and rpm and throttle position.

Those maps are ,model specific, but the computer that reads them
generally is not, although its often in a different case for each car.

You can also buy aftermarket ECUs that you program the parameters into
on a laptop

--
The higher up the mountainside
The greener grows the grass.
The higher up the monkey climbs
The more he shows his arse.

Traditional

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