Timing is also affected as it helps (to a small extent) control emissions
output. I'm still digging further into exactly what is changed.
- Bernd
-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of
jon@dakota-truck.net
Sent: Wednesday, June 30, 2004 11:45 PM
To: dakota-truck-moderator@bent.twistedbits.net
Subject: Re: DML: Little tid-bit of info for Catalytic Converter
Replacements
What is the effect on the fuel tables? Just as a wild guess,
I am assuming that the PCM would attempt to lean them out slightly
so as to throw less hydrocarbons at the cat? If so, that sort of
change wouldn't necessarily be a bad thing, as these motors run
pretty rich as it is, and could probably pick up a few ponies
with a leaner mixture.
Anyway, I guess the question hinges on what exactly is changed over time
in the fuel tables. Without knowing that, IMHO, its not
really possible to say wether it is better to reset the "cat
clock" or not. (And of course, even if we knew exactly what those changes
are, which way is "better" might even vary from truck to truck...)
--
-Jon-
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