Re: Catalytic converter

["C. Bybee" <cbybee@xxxxxxxxxxxxx>]

Darren,

Sounds like there may be some differences between the ST and Speed Triple
then, as far as I can see from the shop manual for the Speed Triple, there
are no sensors in the Engine Management System as relates to the exhaust
system. There is a canister purge valve that is "pulsed" according to the
book to release vapor stored in the carbon canister, but other than that I
see no other emission related sensors/valves on the Triple. The book lists
the following sensors: Intake Air Temp, Barometric Pressure, Engine Coolant
Temp, Road Speed, Crankshaft, Camshaft, Neutral/Side Stand, Throttle - and
the following Actuators: Fuel Pump, Plug Top Ignition Coils, Canister Purge,
Idle Air Control, Cooling Fan, Injectors.


Chris B.

- ----- Original Message -----
From: <Darren_Mason@xxxxxxxxxx>
To: <ST@xxxxxxxxxxxxxx>
Sent: Tuesday, November 07, 2000 4:33 PM
Subject: Re: Catalytic converter


>
> >>Eric,
>
> I live in Colorado but picked up my Speed Triple in Los Angeles, and I was
> told (and my research seems to bear it out), that the vapor recovery
> /charcoal canister and the "catalytic block" are the only differences in
> the
> California models versus the rest of the U.S. My dealer here said that
> there
> is no difference in F.I. tune for the California models, and that by my
> adding the "race can", I pretty much eliminated any performance penalty
> that
> I might have had.  I believe the catalytic block is located in the exhaust
> header and that you would have to replace that component in order to
remove
> it. I think all this is the same for ST's as well.
>
> Chris B.
> 01' Sprint ST
> 00' Speed Triple<<
>
> Chris,
>      According to the workshop manual, models with a catalytic converter
> also have a lambda sensor in 1 header & different maps in the  ECU.
>      If it is the same as cars, the lambda sensor provides the ECU with a
> signal according to the mixture strength & the ECU finetunes the mixture
> accordingly. This usually does not operate at high load, where no feedback
> from the lambda sensor is used BUT this is changing as wide band sensors
> become more readily available.
>
>      Darren.
>
>
>
>
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