[Dave at Pelican Parts]

The throttle switch also affects the mixture at idle. It richens it up a bit, in general, and makes the FI "pay attention" to the knob on the ECU. This could have some effect on the cold starting problem.

To test the cold start valve, you'll need to remove it from the manifold (two screws on a 2.0) and stick it in a jar. Unplug the wire from the thermo-time swtich (to the right-front of the manifold, on a bracket on the manifold's "feet") and ground that wire. Then have someone crank the starter motor while you watch the jar. Fuel should squirt out as long as the starter motor is cranking.

Before you check that, you should check the TTS. Unplug it and check the resistance between the lug on the one end of the TTS and ground. If it's above 50F (I think the number was), it should show no connection. If it's below that, it should show a dead short.

The CSV only squirts when BOTH conditions are true--when it is below 50F AND when the starter motor is cranking.

--DD