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Old Jul 12th, 2018, 00:27   #2
Laird Scooby
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Last Online: Yesterday 21:57
Join Date: May 2012
Location: Lakenheath
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That Idle Control Valve doesn't sound healthy Phil, worth swapping for a known good one to see if it puts the EML out. As far as i'm aware, the centre part of the ICV is the bit that moves, depending how it's made either in and out to open up and close down an airway or if it's the disc type with a varying width slot, should rotate but only under motor control.

The other one you describe is an Auxiliary Air Valve. Basically a plate on the end of a bi-metallic spring that bends when it gets warm from the current passed through the heating element inside the valve body.
When the bi-metallic strip is straight/cold, the air channel is open, as it heats up, it bends and closes the air channel.

Not sure if that actually answers your question but i hope so!
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Dave

Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........
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