Miata Mailing List: October 1997, Message #114
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From: 	David Okamoto <davo@lsil.com>

Subject: Re: No O2 sensor???

Date: 	Wed, 1 Oct 1997 12:26:36 +0000



Greg Germar wrote:

> 

> Now here's a new fact about Philippine Miatas:

> 

> I learned from a buddy of mine that our Miatas have no O2 sensor!  Or

> rather, we do have it, but the wires leading to the ECU are disconnected!

> Supposedly, Mazda feels it's too hot over here, and disconnected the sensor

> from the ECU.  Subsequently, the ECU would read "lean", and richen our A/F

> mixture, to prevent pinging...

> 

> Now the question:  should I mess with this?  I could reconnect the O2

> sensor, but why would I want to?  Also, the ECU on my car might be

> different, set to NOT having input from the O2 sensor...?

> 

> As Spock would say, "fascinating......."

> 

> Greg

> 96 BRG

> 

> Gregory G. Germar, MD

> UP-PGH Medical Center

> Department of Ophthalmology



Greg:



If I understand correctly, you run leaded fuel there, and don't have to

use a catalytic converter.



I believe the O2 sensor's primary role is for adjusting fuel mixtures

for emissions controls, more than for performance.  (Please correct this

if I'm wrong, anyone?)



Stands to reason then, that leaving it disconnected is rather moot.



Yes? No?



Don't you love a guy that stands up to his convictions?



-- 

Dave Okamoto

LSI Logic Corporation

mailto:davo@lsil.com