COLD IDLE ROUGHNESS NEW PROM INFORMATION. Chevrolet Citation 1983

For 1990-2009 cars

# COLD IDLE ROUGHNESS NEW PROM INFORMATION

#### Model and Year 1983 CITATION

Some 1983 Citations with 2.5L engine, automatic transmission, and a one board design ECM* may experience a rough idle when the engine is cold.

This condition may be corrected by installing a new PROM, P/N 1226725.

*NOTICE: A one board design ECM may be identified by disconnecting the ECM wiring connector and looking inside the ECM. Only one circuit board will be present, as opposed to two circuit boards used in earlier designs.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.