For 1990-2009 cars

# ENGINE MAY EXPERIENCE COLD START STALL (INST. NEW MEMCAL)

#### SUBJECT: ENGINE MAY EXPERIENCE COLD START STALL (INSTALL NEW MEM-CAL)

#### VEHICLES AFFECTED: 1990-92 "W", 1991-92 "C/E", 1992 "H" W/3800 (VIN CODE L)

Some 1990-92 W models, 1991-92 C and E models, and 1992 H models equipped with 3800 T.P.I. engines (Code L), may experience a condition described as engine does not stay running on initial cold start.

This calibration was a running change for the 1992 model year. Be sure to check MEM-CAL scanner I.D. as the vehicle may already have this correction.

If this condition is experienced and cannot be repaired by using currently published service diagnostic procedures, it may be necessary to install a new service MEM-CAL after basic engine controls and systems performance have been verified.

Parts are currently available from CANSPO.

#### PARTS INFORMATION:

MEM-CAL MEM-CAL MEM-CAL AXLE SERVICE SCANNER BROADCAST YEAR SERIES RATIO PART NUMBER I.D. NO. CODE ---- ------ ----- ------------ ------- -------- 1990-92 W 3.06/FED 16169568 9634 AZKT

1992 H 3.06/FED 16169588 9574 AZKL

Oldsmobile H 3.06/FED 16169598 9594 AZKN or Pontiac W/QNX 1992 P225/60RI6 Tires

1992 H 2.84/FED 16169578 9554 AZKJ

1991-92 E 3.06/FED 16167814 7714 AUWD

1991-92 C 3.06/FED 16169588 9574 AZKL

Oldsmobile C 3.06/FED 16169598 9594 AZKN 1992 W/QNX P225/6ORl6 Tires

1991-92 C 2.84/FED 16169578 9554 AZKJ

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.