[DML] Re: Fuel Economy

["cruznmd" <racuti1@xxxxxxxxxxxx>]

Everything you've done so far is good, but have you checked your 
Lambda system? Does the frequency valve buzz? How old is your O2 
sensor? Have you hooked it up to a gaz analyzer or hooked a dwell 
meter up to the engine?

The freq valve may buzz but inputs from the O2 sensor may not be 
reaching the ECU so the ECU may be running the freq valve at the 
richer, "default" value.

Just some things to consider.

Rich A.
#5335

--- In dmcnews@xxxxxxxxxxxxxxx, "Jeff Phillips" <jmanis2@xxxx> wrote:
> Having recently been able to drive the DeLorean for extended 
periods 
> of time I've just noticed that I've horrendous fuel efficiency 
around 
> 10 MPG.  My exhaust is extremely rich, so much so the fuel vapors 
> will cause your eyes to tear up, hence my ongoing investigation of 
> the CO2 adj.  Meanwhile I pulled the plugs to inspect them and to 
to 
> a compression check and expected all 6 to be saturated in fuel.  
Much 
> to my surprise 4 were clean and tan in color but the two closest to 
> the firewall on the drivers side were wet with fuel.  I'm now 
> suspecting that the problem may be the injectors and took some of 
> Hervey's advise and poured in a bottle of Berryman 12 fuel cleaner 
> into the tank.  Only a half tank later I've seen remarkable 
improment 
> in my milage (on track for 20MPG) but the fuel smell hasn't 
improved 
> much.  I'll be pulling the injectors and inspecting the spray this 
> week as I suspect those two may not be closing fully and causeing 
> fuel to leak into the cylinders.
> 
> Am I on the right track with my assumptions?  Also, since my CO 
screw 
> is stripped I'm going to replace it with my newly pulled one.  
Where 
> should I set the screw initially so I can adjust it to the proper 
> position?
> 
> Jeff
> #10544




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