[T3] Air Pressure Sensor Update

[Tim Keohane]

The "E" sensor is for my year 1973 F. I. It operates off a vacuum developed in the air intake distribution box. There is a vacuum hose that goes from the intake manifold ( large unit on top with 4 runners, 2 to each side) to an orange sized unit mounted ( on my 73) under the deck to the deck, next to the engine on the drivers side. There are usually 2 numbers, a Bosch # and a VW #. On mine the last digit in the VW # is "E". It matches the control unit and sensors that regulate fuel to the cylinders. A wrong reading can deliver incorrect volumes of fuel, too much/too little.
If your sensor does not develop a vacuum you will have fueling problems. If it does not match the F I system in your car it (in my case) will run but not "right" but will run.  This assumes the other components are within specks. ( timing,valves, points gap/dwell, etc) I hope this helps.
Jim chime in if I have this incorrect
Tim
On Nov 25, 2014, at 8:43 AM, Chris Sheridan wrote:

> I have chased these for a long while, and rebuilt ( Jim A.) the distributor
> changed sensors (temp) reset timing and valves way more than necessary,
> rechecked fuel pressure while parked and under load, changed wires and
> coil, points and condenser, and TPS, all with no results.
> The "E" sensor has cured those issues. I'm sure many of the readers are
> thinking "duhhhh" but it ran well with the "C" APS.
> 
> 
> Hi, I too had my distrib rebuilt, etc, etc. and am experiencing horrible
> stumbling missing at idle in my FI automatic. What is the 'E' sensor you
> speak of? Whatever it is, I need one. Also I was reading Ray Greenwoods
> stuff on the Samba list and he states that our D-Jetronic connectors were
> only supposed to be accurate for maximum 12 plug/unplug cycles? This makes
> mine 4,000 times out of spec.
> 
> -Chris
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