Idle air control hardware

[Walter Petermann]

Mike,
don't know about Japanese, but Mercedes V8's had a nice setup 
in the 80's that you might be able to find at a junk yard.
It's an idle air valve with it's own ecu. Has inputs for
idle (you'd need to add a switch), A/C clutch signal and
engine oil temp (you'd need to use this sensor).

The problem would be to convert the twelve ignition
pulses to eight.

There was also a Mercedes 280 (6 cyl) but I don't know
if they had the same idle control system. If they did,
and you have the Marelli twin coil ignition, it should
work if you use the ecu from the 280 and the valve from 
the Mercedes 500.

Another, maybe better source might be an L-jet 6 cyl BMW
like the 528.  

  Walter     

Mike Morrin wrote:
> 
> For my Jag V12 project, I would like to have ECU control over idle speed.
> The original Bosch/Lucas EFI used a mechanical valve driven by a wax bulb
> in the water rail.  Something more sophisticated seems to be in order.
> 
> I would like to know what the junk-yard options are.  In this country there
> are no Detroit iron lumps in the junkyards,  are there any Japanese engines
> which are suitable donors?
> 
> How much would new hardware from the US cost?
> 
> Any other suggestions?
> 
> TIA
> 
> Mike