At this point they are considered incertae sedis;in other words, we know that they are theropods; and probably coelurosaurs; but we don't know who they are related to or how they fit into the big picture of theropod phylogeny.
Idle speed is adjusted by means of the idle control valve, which is a solenoid-operated valve that is generally automatically adjusted by a computer. One problem that can occur with this component is a loss of power (from a severed line or a short) but a more common problem is simply dirt and grime.
TOPIC: Idle Control Valve -- clean vs. replace. Idle Control Valve -- clean vs. replace 2 years 8 months ago #105060. cHoping to find some insights. I have an 2001 Nissan Maxima, 6 cylinder. recently got a po505 message indicating a problem with the Idle Control Valve. I was planning to replace it when a mechanic suggested that i just clean it rather than replace it.