On Tue, Apr 28, 2009 at 4:14 PM, Hayes Myers <hayesmyers at gmail.com> wrote: > What would cause a lean condition at idle? Under power everything reads > fine.let off the gas and itleans right out. CIS cuts off fuel during coast-down. I think it is triggered by the idle switch. This applies to at least the MC in the 5kCST; dunno about the MC2. Brett