Re: ur-q air temp sensor, Correction

[Robert Houk - SMCC Bos Desktop Hardware <rdh@UrQ.East.Sun.COM>]

      I've a problem with my ur-q which started about six month ago and has slowly
      been getting worse. Symptoms are on startup after sitting overnight engine
      ...
      1. Warm-up regulator (fuel pressure regulator)
	 With new fuel pump and filters fitted I'm reading 5.2 bar fuel pressure
      coming from the fuel tank. If memory serves me right (some time since I
      checked) I read 4.2 bar coming from warm-up regulator engine hot or cold.

   Definite bug; don't have the charts here, but as I recall the pressure from
   the regulator should drop off about 3bar (a lot, anyways, better than half
   of max; again as I vaguely recall) as it warms up.

Oops -- phrased that backwards.

The Control Pressure Regulator feeds a "backpressure" into the fuel dis-
tributor, in essence reducing the fuel system pressure. "Cold", the CPR
should be outputting about 1 - 2 Bar of pressure, providing a fairly rich
mixture for the cold engine. Within a short while (coupla minutes or so)
the CPR output pressure should *rise* and stabilize at around 3.5 Bar or
so, resulting in a leaner mixture by effectively lowering the fuel system
pressure. Leastways, this is how the U.S.-spec cars work ('83 UrQ).

					-RDH