Re: What years had the PAIR system?
The function of the PAIR or (Pulsed Air Injection Reaction) system was to aid and prolong the chemical reaction of the exhaust gasses to remove unbuned fuel or HC from the exhaust stream. The system added fresh air via the A.I.R. air pump into the exhaust stream to aid the catalytic converter. This helps turn HC CO and NOx onto C , N and H2O. This is the function of the Converter. The chemical reaction continues till approx 300° F aided by the presence of noble metals in the Catalytic converter . The converters have Platinum ,Palladium and in the later 3 stage converters Rhodium. This is why they are so much money.
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