[DML] Re: Fuel Injector Pressure vs Fuel Consumption

["Harold McElraft" <hmcelraft@xxxxxxx>]

Fuel consumption is usually miles/gallon of fuel - right? So, you 
need to measure miles and fuel then do the math based on the last 
cumulative reset. I would think there are aftermarket folks that 
sell these types of in-car calculators if you can figure out how to 
provide the fuel input (probably the sender unit) and the mileage 
input (more difficult to obtain electronically on the D of course). 
Seems like I remember once upon a time a company sold a vacuum 
reading unit that could be calibrated for your engine that would 
calculate mpg (an approximation) based on the average manifold 
vacuum reading over time (clock provided in the unit). I think I saw 
it on the JC Whitney site - but I haven't searched to verify.

Harold McElraft - 3354


--- In dmcnews@xxxxxxxxxxxxxxx, doctorDHD@xxxx wrote:
> 
>  
>  
> In my continuing efforts to measure fuel consumption for the "D" 
I  installed 
> an electronic pressure sensor connected to one of the injectors.   
I'm not 
> sure I am getting the information I need.  I have based my idea 
on  some 
> assumptions.
>  
> 1) I thought that the pressure in the injector line would be a way 
to  
> estimate fuel consumption based on the idea that the more the 
pressure in the  line 
> the more fuel would be sprayed out.
>  
> 2) Each injector should have the same pressure so I should have to 
monitor  
> only one.  (But if that is true why didn't they just have one 
chamber or  
> perhaps 2 fuel rails, with all 6 injectors essentially connected 
to the same  
> point?)
>  
> Any comments or ideas?
>  
> See you at the Fall Tour with the DeLorean Driving Computer....
>  
> 
> 
> 
> Dave  & 6530
> 
> 
> 
> 
> "Just Say  NO, to the COUCH POTATO!"®





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