On 7/15/2021 10:41 AM, Leon wrote:
> On 7/15/2021 2:14 AM, Michael Trew wrote:
>> On 7/14/2021 2:34 PM, Leon wrote:
>>> On 7/14/2021 10:34 AM, Michael Trew wrote:
>>>> On 7/13/2021 5:01 PM, J. Clarke wrote:
>>>>> Nahh. The damned thing has some piece of crap Microsoft electronic
>>>>> device built into it that makes it decide not to start at random
>>>>> intervals. Solution is to fish under the dash, pull a fuse, wait a
>>>>> minute, put the fuse back. And of course it won't run if I just pull
>>>>> the fuse out and leave it out.
>>>>>
>>>>> That's why I'm getting rid of it at my earliest convenience.
>>>>
>>>> I'll try not to get started on a car rant again, but stuff like that
>>>> is my reasoning for driving 90's and back vehicles. I like the old
>>>> stuff without computers and touch screens!
>>>
>>> You have to go back to the 70's to avoid computers.
>>>
>>> I will take the computers any day.
>>>
>>> In 1980 Oldsmobile introduced the ECM. Suddenly V6 engines were out
>>> performing v8's and getting better gas mileage.
>>
>> I didn't mean ignition control computers. I meant the crazy touch
>> screen every-single-simple-manual-control-is-microprocessor-controlled
>> madness. I like manual HVAC controls (you can feel the levers operate
>> as you pull/push switches), manual windows, throttle cable (not wire),
>> manual everything. Electronic spark control (or "ECM" more recently)
>> is fine.
>
> Sorry, when you said computers and touch screens I assumed you knew that
> the touch screen was not the only computer in a vehicle.
>
> Regardless nearly all electrical components, window regulator motors,
> door lock actuators, AC controllers to name a few all have a chip of
> some sort.
>
> Having been the service manager at an Olds dealership I can assure you
> that manual lever actuated controls had their issues too.
>
> So in the 80's GM's "ECM" was short for Electronic Control Module. That
> computer monitored every electrical function, including simple lighting.
> If your vehicle has a catalytic converter, most likely you have some
> type of processor to measure O2.
>
> If you have a vehicle built since 1980 you have electronics that you
> probably had no clue that they were there.
>
I probably sound like a broken record mentioning "geo metro" in almost
every other post, but I've torn one of these cars down to the bare
chassis. If it has a standard transmission, the only real "computer" is
the ECM. The A/C system is simply powered by a switch that goes to a
standard relay. Most of these systems that are "chip controlled" on
modern cars are controlled by simple relays on my Metros. The ECM
monitors the O2 sensor. I'm sure the OBD2 Metros (1996+) have some
additional computers -- but mine are all the old style '94 and back.
Of course, the Metro being a dead-simple basic style car, it isn't
surprise that it has all basic controls. I'm sure my '89 Olds wagon and
others do have some computer/chips that I'm not aware of. I'm not
counting the radio in any of my vehicles either. The climate controls
are vacuum controlled in my Oldsmobile, and there is a loose line
somewhere, because it's stuck on defrost. Of course, there are faults
in any system, but I like simple mechanical systems where at least I can
fix the fault myself (eg: stuck lever in the climate controls).