"Ed Pawlowski" wrote in message
news
On 2/27/2021 12:02 PM, Fred wrote:


"Ed Pawlowski" wrote in message
...
On 2/27/2021 11:15 AM, Fred wrote:


"Ralph Mowery" wrote in message


but once anything gets into the electrical system it will
take a lot of training and skill to solve the problem.

That's bull**** on the training. It isnt hard to check the plugs
to see if one of them looks bad and to try moving them around
if they look fine. And to try new plugs, that doesn't cost much.

Same if one of the electric windows stops working or the battery
goes flat much more quickly than it had done when it was new.

What about the ECM? Does you guy have what is needed to check it out
and change parameters?

Not only that, to reprogram it for better performance too.
Trivially buyable on the net.

What about the many microprocessors? How do you track them down?

You dont normally need to, they dont usually
fail and if say you diagnose that whats in the
'radio' or the screen has failed, you just replace it.

ECM problems are not "fixed" with a tune chip.

It wasnt clear that that is what you were still asking about.

And we arent talking about a tune chip.

Fact is, microprocessors do fail.

Fact os even the dealer doesnt replace a failed microprocessor
in the ECM. The whole thing is refurbished by a specialist in the
rare situation where one of the microprocessors has failed.

Just replace the radio? A head unit for my car lists at $3000.

No one internally repair the radio anymore unless
its a simple cabling fault or something like that.

The more you go on how simple it is the more you show how little you know
of new cars.

How odd that I am in fact assisting that mate of mine
with reprogramming the ECM in those Mercs and with
getting the right radio unlock code as well.