[Diy_efi] Air fuel meters

[James Seabolt]

At 07:36 PM 4/12/05, you wrote:
>Hi James,
>
>How much have you driven the car since the engine was flooded?  I had a 
>similar problem on my 1992 Honda Accord.  After flooding the engine while 
>trying to start under very cold conditions (turned out to be bad 
>distributor cap, rotor and wires), the check engine light lit up and was 
>giving me an O2 sensor code.  It must have become coated with gas or 
>something and it's response had become lazy.  After driving it for a few 
>days, the deposits burned off and things came back to normal.  I'd give it 
>a chance before assuming the sensor is fried.
>
>I'm usually a lurker on the list as I don't have anywhere near the 
>technical knowledge of others here but I hope my experience can be helpful 
>to you.


It's been around 50 to 75 miles or so since the last time the engine 
flooded out.

Another thing to mention. In the beginning I was experimenting with a 
Zenith carburetor from a Harley Davidson and at one point the fuel mixture 
was so rich I fouled the spark plugs. I'm now using a Weber DFTA.

So I'm thinking between using the HD carburetor and the episodes the Weber 
carburetor flooded out, I think the O2 sensor is either coked up with soot 
or from gasoline hitting a hot O2 sensor fried it.

The soot theory doesn't make sense for the reason I figured it would have 
burned off by now and if it was coked up, looks like the sensor would be 
sending no voltage to the meter instead of maximum. Well I haven't tested 
the sensor's voltage with a multimeter. I'm just assuming it's creating .9 
volts.





James Seabolt
Tennessee, United States
Homepage --->>> http://users.chartertn.net/jseabolt/

2003 Subaru Baja
1980 FIAT 2000 "turbo" Spider
1968 Ford Fairlane 500 (Not a Ford Galaxie!!)
1987 Yugo GV 1500cc also turbocharged









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