Ferrari Mailing List: Re: checking air/fuel ratio

[LarryT (l02turner]

Hi Jim,
   Backfires will indicate a lean condition which can be caused by a lean 
mixture when letting off the accel pedal quickly or it can be caused by a 
vacuum leak somewhere.  Rich is indicated by a black exhaust pipe & poor 
MPGs.

   I assume you need something a little more precise?  BTW, I would 
strongly suggest you not attempt any changes to the mixture without the 
proper monitoring   equipment  - you can get away with a too lean condition 
if driving like Grannie, but WOT will melt pistons.
;-)

Is there any possible way to attach a laptop?

Good luck --

Larry T (66 MGB, 74 911, 78 240D, 91 300D)
www.youroil.net for Oil Analysis and Weber Parts
Test Results http://members.rennlist.com/oil
PORSCHE POSTERS!  youroil.net
Weber Carb Info http://members.rennlist.com/webercarbs
.

----- Original Message ----- 
From: "James V. Cunningham" <vikelj [at] comcast.net>
To: "Larry Turner" <l02turner [at] comcast.net>
Cc: "The FerrariList" <ferrari [at] ferrarilist.com>
Sent: Wednesday, January 30, 2008 3:32 PM
Subject: [Ferrari] checking air/fuel ratio


> 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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