TIP: Click on subject to list as thread! ANSI
echo: automotive
to: Jim Haight
from: Mark Hofmann
date: 2016-01-28 09:03:50
subject: Re: chip programmers?

JH> One thing I don't miss.... You can tell when you are driving behind a
JH> carburated car nowadays because of the smell. When carbs deteriorate,
JH> they are far less efficient. I think we used to take if for granted.

That and not having a catalytic converter.  That made a big difference when
it comes to smell.  

The downside of having a computer control the vehicle is it totally relies
on the sensors.  If one fails in a strange way it can cause the vehicle to
run horrible.  I had an O2 sensor fail in a strange way on the Durango
once. Instead of just going dead - which would have put the computer into a
fail-safe mode with regards to the O2 sensor, it was telling the computer
it was getting too much gas (maxed the voltage reading and was stuck at
that point).  This caused the truck to be starved for gas and could hardly
get it to drive home.  

When I hooked it up to my laptop, I saw that O2 sensor fail with a steady
high voltage vs the fluctuating reading you would normally see.  I replaced
that O2 sensor and it ran perfect again.  You would have thought the motor
was dead just from the O2 sensor.

- Mark

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