Ferrari Mailing List: Re: checking air/fuel ratio

[Jeff Greenfield (coyote]

Other than looking at the plugs (best done immediately after doing a  
plug cut, where you drive at high revs, kill the engine without  
backing off the throttle, coast to a stop and pull the plugs) there  
really isn't a good way without instumentation.

The best is to install a bung in the exhaust for an oxygen sensor and  
use one of the many available mixture indicators.

I like the LM-1 and other wide band products from these guys, but  
there are many that will do.

www.tuneyourengine.com

Jeff

Sent from my iPhone

On Jan 30, 2008, at 3:32 PM, "James V. Cunningham"  
<vikelj [at] comcast.net> wrote:

> Does anyone know how to check the air/fuel ration (running lean or
> rich) on a car without a catalytic converter or an O2 sensor?  Thanks.
> Jim
>
> James V. Cunningham, Esq.
> 410-625-7400
> http://home.comcast.net/~vikelj/page3.html
>
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