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ECM - Revision Code 23

87chevy23

Number: 88-103-6E

Section: 6E

Date: DEC., 1987
Subject: CAVALIER SHOP MANUAL REVISION

CODE 23

Model and Year: 1988 CAVALIER WITH
2.8L MPI ENGINE

TO: ALL CHEVROLET DEALERS

MANIFOLD AIR TEMPERATURE (MAT) SENSOR CIRCUIT:

The ECM cavities used for MAT input on page 6E3-A1-34 of the 1988 Service Manual should be changed. Circuit 472 is located at F16 (not C12) and circuit 452 is located at B5 (not D2).