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Air Pump on 82 ??

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Old 10-05-2007, 11:56 AM
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mkj269420
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Default Air Pump on 82 ??

I was wondering do the make a pump to force more air into the intake other then the factory pump
Old 10-05-2007, 12:02 PM
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lars
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There are no factory pumps used to force air into the intake on an 82.
Old 10-05-2007, 12:05 PM
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Can you explain what the air pump is for then??
Old 10-05-2007, 12:22 PM
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Garrett1972
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It forces air into the exhaust so that the catalytic converter can burn any unburned fuel that gets through the combustion chamber.
Old 10-05-2007, 12:41 PM
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lars
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Originally Posted by mkj269420
Can you explain what the air pump is for then??
The A.I.R. pump (Air Injection Reactor) pumps air into the exhaust manifolds when the ECM (computer) is in "open loop" operation (when engine is cold). The additional oxygen in the exhaust heats the exhaust gasses, and thereby the catalytic converter, making it function rapidly to reduce emissions on cold start. Once the computer goes "closed loop", the ECM uses ox sensor information to control mixture, and the pre-heated converter is doing it job. For that reason, as soon as the system goes "closed loop," the diverter valve shuts off air flow from the pump to the manifolds and the pump is not used.

There is no pump pumping any air into the intake manifold.

Lars
Old 10-05-2007, 01:49 PM
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SIXFOOTER
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On the 81 (don't know about 82) there is a port from the pump to the air cleaner, supposed to send unused air from the pump thru the carb. Very low tech forced air induction
Old 10-05-2007, 01:52 PM
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lars
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Unfortunately, the volume is too low to produce any pressurizing effect at all... it's about as effective as farting in the air cleaner.
Old 10-05-2007, 01:55 PM
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Thanks, Lars. One more thing I can scratch off of my "Things to try to make my car go faster" list.

Originally Posted by lars
it's about as effective as farting in the air cleaner.
Old 10-05-2007, 02:30 PM
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thanks for the great info.

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