Bonneville V6-3.8L VIN K (1996)
Technical Service Bulletin # 71-65-58
Date: 970801
Engine Controls - Revised MAP P0107.P0108,P1106,P1107
File In Section: 6E - Engine Fuel & Emission
Bulletin No.: 71-65-58
Date: August, 1997
SERVICE MANUAL UPDATE
Subject:
Section 6E - Engine Controls Revised Manifold Absolute Pressure (MAP) Sensor Description
Models:
1996-98 Buick LeSabre, Park Avenue, Park Avenue Ultra, Riviera
1996-98 Oldsmobile Eighty Eight, Eighty Eight LS, LSS
1996-98 Pontiac Bonneville
1996 Oldsmobile Ninety-Eight
1997 Oldsmobile Regency
1997 Buick Regal, Regal Gran Sport
1997 Pontiac Grand Prix
with 3.8L Engine (VINs 1, K - RPOs L36, L67)
This bulletin is being issued to inform technicians of a revision to the Manifold Absolute Pressure (MAP) Sensor circuit descriptions for DTCs P0107,
P0108, P1106, P1107 and the MAP Sensor description in the "Information Sensors/Switches Description" located in the "Description and Operation"
section. Replace the current descriptions in the above listed DTCs and "Description and Operation" sections with the following revisions:
DTC P0107
VIN K - The Manifold Absolute Pressure (MAP) sensor responds to changes in intake manifold pressure. The PCM supplies a 5 volt reference and a
ground for the MAP sensor. The MAP sensor provides a signal to the PCM relative to pressure changes in the manifold. The MAP sensor signal voltage
to the PCM varies from below 2 volts at idle (low manifold absolute pressure - high vacuum) to above 4 volts with the key ON, engine not running or at
wide open throttle (high manifold absolute pressure - low vacuum). The PCM monitors the MAP signals for voltages outside the normal range of the
MAP sensor. If the PCM detects a MAP signal voltage that is excessively low, DTC P0107 will be set.
VIN 1 - The Manifold Absolute Pressure (MAP) sensor responds to changes in intake manifold pressure. The PCM supplies a 5 volt reference and a
ground for the MAP sensor. The MAP sensor provides a signal to the PCM relative to pressure changes in the manifold. With the key ON, engine not
running, the MAP sensor signal voltage to the PCM varies between 1.5 to 2.5 volts. With the engine running, the MAP sensor voltage to the PCM varies
from below 2 volts at idle (low manifold absolute pressure - high vacuum) to above 4 volts at wide-open throttle (high manifold absolute pressure - low
vacuum). The PCM monitors the MAP signals for voltages outside the normal range of the MAP sensor. If the PCM detects a MAP signal voltage that is
excessively low, DTC P0107 will be set.
DTC P0108
VIN K - The Manifold Absolute Pressure (MAP) sensor responds to changes in intake manifold pressure. The PCM supplies a 5 volt reference and a
ground for the MAP sensor. The MAP sensor provides a signal to the PCM relative to pressure changes in the manifold. The MAP sensor signal voltage
to the PCM varies from below 2 volts at idle (low manifold absolute pressure - high vacuum) to above 4 volts with the key ON, engine not running or at
wide-open throttle (high manifold absolute pressure - low vacuum). The PCM monitors the MAP signals for voltages outside the normal range of the
MAP sensor. If the PCM detects a MAP signal voltage that is excessively high, DTC P0108 will be set.
VIN 1 - The Manifold Absolute Pressure (MAP) sensor responds to changes in intake manifold pressure. The PCM supplies a 5 volt reference and a
ground for the MAP sensor. The MAP sensor provides a signal to the PCM relative to pressure changes in the manifold. With the key ON, engine not
running, the MAP sensor signal voltage to the PCM varies between 1.5 to 2.5 volts. With the engine running, the MAP sensor voltage to the PCM varies
from below 2 volts at idle (low manifold absolute pressure - high vacuum) to above 4 volts at wide-open throttle (high manifold absolute pressure - low
vacuum). The PCM monitors the MAP signals for voltages outside the normal range of the MAP sensor. If the PCM detects a MAP signal voltage that is
excessively low, DTC P0107 will be set.
DTC P1106
VIN K - The Manifold Absolute Pressure (MAP) sensor responds to changes in intake manifold pressure. The PCM supplies a 5 volt reference and a
ground for the MAP sensor. The MAP sensor provides a signal to the PCM relative to pressure changes in the manifold. The MAP sensor signal voltage
to the PCM varies from below 2 volts at idle (low manifold absolute pressure - high vacuum) to above 4 volts with the key ON, engine not running or at
wide-open throttle (high manifold absolute pressure - low vacuum). The PCM monitors the MAP signals for voltages outside the normal range of the
MAP sensor. If the PCM detects a MAP signal voltage that is intermittently high, DTC P1106 will be set.
VIN 1 - The Manifold Absolute Pressure (MAP) sensor responds to changes in intake manifold pressure. The PCM supplies a 5 volt reference and a
ground for the MAP sensor. The MAP sensor provides a signal to the PCM relative to pressure changes in the manifold. With the key ON, engine not
running, the MAP sensor signal voltage to the PCM varies between 1.5 to 2.5 volts. With the engine running, the MAP sensor voltage to the PCM varies
from below 2 volts at idle (low manifold absolute pressure - high vacuum) to above 4 volts at wide-open throttle (high manifold absolute pressure - low