RE: Thermo Time Switch => Cold Start Injector Question

[Aleksander Mierzwa <alex@matrix.com.pl>]

Mark wrote:

	>My question is which thermo switch is used to activate the cold
start
	>injector.

It is triggered by the ECU.

	>On the coolant flange coming off of the head I have three:
	> o Single pin on top of flange. <==ISV?

Yes

 	>o Two connector on side of flange.  <==Cooling fan/turbo
after-run?

Correct

	> o Multi-connector on the bottom of flange.  <==Bunch of stuff?

This is the sender for the temp gauge, as well as provides "engine cold"
and "overheat" signals to the auto-check unit and A/C programmer. I
remember reading somewhere that the "engine cold" signal is also used by
ECU - anyone can confirm/deny?

	>Right below the coolant flange screwed in to the head I have a
single
	>pin just like the one sitting on top of the coolant flange.
What's
	>this one for?

This is the main temp sensor for the ECU.

	>What about the unit screwed in to the bottom of the radiator
right
	>below the lower hose?

Radiator fan thermoswitch

Aleksander Mierzwa
Warsaw, Poland
mailto:alex@matrix.com.pl
87 Audi 5000CS turbo (mine)
88 Renault Medallion wagon (mom's)
91 mountain bike (just in case both cars broke at the same time :-)