TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Geo for this TSB. Call your local Geo dealer's service department & ask for a copy of TSB# CAMP/90C51.

Affected Component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

Summary

THE ADMINISTRATOR OF THE US ENVIRONMENTAL PROTECTION AGENCY (EPA) AND GENERAL MOTORS HAVE DETERMINED THAT CERTAIN 1990 GEO METRO VEHICLES WITH 1.0L ENGINES MAY EXCEED HIGH ALTITUDE CARBON MONOXIDE FEDERAL EMISSION STANDARDS. THIS CONDITION APPLIES TO VEHICLES REGISTERED IN COLORADO, NEVADA NEW MEXICO AND UTAH (VEHICLES WHICH HAVE MOVED TO THES STATES FROM CALIFORNIA WHICH ARE EQUIPPED WITH RPO YF5 DO NOT REQUIRE THIS CAMPAIGN REPAIR). THESE STANDARDS WERE ESTABLISHED TO PROTECT THE THE PUBLIC HEALTH AND WELFARE FROM DANGERS OF AIR POLLUTION. EXCESS EMISSION OF POLLUTANTS MAY CAUSE A VEHICLE TO FAIL STATE MANDATED EMISSION TESTS. TO CORRECT THIS CONDITION, VEHICLES REGISTERED IN THE FOUR AFFECTED STATES WILL HAVE A REDESIGNED OXYGEN SENSOR INSTALLED. *TW

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