For 1990-2009 cars

# SMU - SECTION 6E - ENGINE CONTROLS - REVISED

#### SUBJECT: SERVICE MANUAL UPDATE - SECTION 6E - ENGINE CONTROLS - REVISED DTC P0401 - EGR SYSTEM FLOW INSUFFICIENT

#### MODELS: 1997 BUICK SKYLARK 1997 CHEVROLET CAVALIER, MALIBU 1997 OLDSMOBILE ACHIEVA 1997 PONTIAC GRAND AM, SUNFIRE

1997 CHEVROLET AND GMC TRUCK S/T MODELS WITH 2.2L AND 2.4L ENGINE (VINS 4, T - RPOS LN2, LD9)

THIS BULLETIN IS BEING ISSUED TO REVISE THE DTC P0401 TABLE FOR THE FOLLOWING SERVICE MANUALS:

* 1997 GMP/97-J-2 * 1997 GMP/97-N-2 * 1997 GMT/97-ST-2

IN STEP 5 OF THE DTC P0401 TABLE, THE YES COLUMN SHOULD READ GO TO STEP 6. THE NO COLUMN SHOULD READ GO TO STEP 3.

PLEASE MARK UP YOUR SERVICE MANUAL WITH THESE REVISIONS.

FIGURES: 00 ATTACHMENTS: 00

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.

COPYRIGHT 1997 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.