Air Pump on 82 ??

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Oct 5, 2007 | 11:56 AM

mkj269420

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From: Clarksville Tn

Air Pump on 82 ??

I was wondering do the make a pump to force more air into the intake other then the factory pump

Oct 5, 2007 | 12:02 PM

lars

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From: At my Bar drinking and wrenching in Lafayette Colorado

There are no factory pumps used to force air into the intake on an 82.

Oct 5, 2007 | 12:05 PM

mkj269420

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From: Clarksville Tn

Can you explain what the air pump is for then??

Oct 5, 2007 | 12:22 PM

Garrett1972

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From: Denver Colorado

It forces air into the exhaust so that the catalytic converter can burn any unburned fuel that gets through the combustion chamber.

Oct 5, 2007 | 12:41 PM

lars

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From: At my Bar drinking and wrenching in Lafayette Colorado

Quote:

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

Oct 5, 2007 | 01:49 PM

SIXFOOTER

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From: Boca Raton Florida

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