No. The idle air valve is on the other side, under the intake manifold, near the distributor. You may be looking at the exhaust gas recirculation valve.

If you are getting 2K RPM idle with the adjustment screw all the way in, there is something really wrong. A normal setting even with the aux valve open should not give you more than 1300.

The first thing to check is the throttle linkage. It may be preventing the throttle valve from closing all the way. Unhook it at the last fitting, near the throttle plate, and see if that makes a difference. If it doesn't, look closely at throttle stop and make sure that there is no dirt or crud preventing it from closing all the way.

Now check all of the large rubber hoses that connect the idle air valve and the aux air valve to the intake. Be sure there are no tears, and that the clamps are tight.

Be sure that all vacuum lines are present and connected. There should be two at the front of the intake manifold. One goes to the distributor, one to the purge valve/charcoal cannister (this one is a prime suspect given the gas smell). There should be one to the warm-up regulator. There may be two others that go to two temp sensors.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe