XPost: alt.autos.toyota.camry, alt.autos.toyota, alt.autos.lexus   
   XPost: rec.autos.tech   
   From: stauffer@usfamily.net   
      
   dr_jeff wrote:   
   > john wrote:   
   >   
   > Really. The ECUs definitely have problems, but please show us a better   
   > way that doesn't involve electronics. Carbs worked well, but wasted   
   > fuel. Without electronics, are air would be dirtier, we would use more   
   > fuel.   
   >   
      
   Why did carbs "waste" fuel?  They used enrichment at high manifold   
   pressure, but so do FI systems.  The last generation of carburetors were   
   quite good.  What really is the difference between a carb and a throttle   
   body electronic injection system?  One is controlled by a pneumatic   
   computer, the other by an electronic one.  Admittedly electronic   
   computers can be miniaturized, and add more computation.   
      
   Essentially the carbs of the seventies and eighties DID have computers.   
     The amount of measurement of their environment and the amount of   
   control was remarkable.  There were even the deceleration controls that   
   got rid of richness during trailing throttle.  They were marvels of   
   fluidic computing.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)