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Forum Rules (Click Here) -> Ontario Rodders -> General Car Talk -> emissions requirements for a 78 jeep.
Post Info TOPIC: emissions requirements for a 78 jeep.
hemi43


ONTARIO

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emissions requirements for a 78 jeep.
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It just needs whatever was originally on the Jeep. I'm not sure if a Jeep was classified as a truck in 78, because trucks had way less emission controls than cars. The fastest production vehicle in 78 was the Dodge little red express truck, and was faster than even a Corvette because it wasn't bogged down with pollution controls.



-- Edited by hemi43 on Sunday 8th of September 2013 09:52:46 PM

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Sacotu


COBOURG, ONT

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I have a 78 cj7 that i'm installing a 68 327 and i don't have a clue what i need for emissions. i've had the truck archived for years and just recently thinking of putting it back on the road, the last engine in it was a 350 and all the emission stuff was tossed. so far i'm thinkin catalytic converters.



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Fordy Acres Car Farm


DORCHESTER, ONT

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Catalytic converters (Cadillac converters for red necks) and likely a fuel tank vent plumbed to the breather possibly with a charcoal canister somewhere in the middle would be my guess.

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Sacotu


COBOURG, ONT

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found this site. inputted by serial number and it tells me i need:

AIR designates an Air Injection Reactor system
EVP designates EVaPorative emission controls
OXY designates an OXYdation catalyst (is this catalytic converters?)
EGR designates Exhaust Gas Recirculation
PCV designates Positive Crankcase Ventilation
TAC designates a Thermostatic Air Cleaner

www.ergweb2.com/vindecoder/index.cfm

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slim


DUNDAS, ONT

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Definnition by site it apears to be some type of cat 

OXY designates an OXYdation catalyst. The oxidation catalyst is also called a two-way catalyst because it is designed to lower two exhaust emissions: HC and CO. Oxidation catalysts first appeared on production vehicles in 1975.

TWC

designates a Three-Way Catalyst. The three-way catalyst is designed to lower three exhaust emissions: HC, CO, and NOx. The catalyst oxidizes HC and CO to H2O and CO2 and reduces NO and NO2 to N2 and H2O. These catalysts, in general, require tighter control of the engine operating stoichiometry so that the exhaust gas entering the three-way catalyst has the proper chemical composition that will enable the catalyst to work efficiently. For three-way catalysts, an exhaust gas oxygen sensor with closed loop combustion control is typically required to control exhaust gas stoichiometry. Three-way catalysts started appearing on vehicles around 1981.

 



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