So what happens when you switch the 3 bar atop the manifold with the one on the throttle body (that one also being 3 bar)? It is possibly a loose pin in the loom, that seems to happen with various sensors on the SHO. Tug on the connector, see if anything gives.
P0106 - Manifold Absolute Pressure (MAP/BARO) Sensor Range/Performance
For Vehicles With 3.5L GTDI Engine
Description: This DTC sets when the MAP PID does not correlate with the BARO and the TCBP PIDs at ignition ON. It also sets if the MAP and TCBP PIDs fail to correlate when running, but the TCBP PID does correlate with the BARO PID at idle.
Possible Causes:
- Slow responding manifold absolute pressure (MAP)/intake air temperature 2 (IAT2) sensor
- Damaged MAP/IAT2 sensor
Diagnostic Aids:
For All Others
Description: This DTC sets when the manifold absolute pressure (MAP) sensor input does not correlate with an inferred MAP value. The inferred value is based on the mass airflow (MAF) sensor.
Possible Causes:
- Slow responding MAP sensor
- Damaged MAP sensor
- Damaged MAF sensor
This pinpoint test is intended to diagnose the following:
- intake air temperature (IAT) sensor (12A697)
- turbocharger boost pressure (TCBP)/charge air cooler temperature (CACT) sensor (9F479)
- manifold absolute pressure (MAP)/intake air temperature 2 (IAT2) sensor (9F479)
- powertrain control module (PCM) (12A650
EA: Pressure and Temperature Sensor Correlation
EA: Introduction
EA1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
Note: Diagnose and repair all circuit DTCs before diagnosing range or performance DTCs.
Are DTCs P007B, P0096, P0106, P0111, P0236, or P00CE present?
Yes
For KOEO and continuous memory DTCs P007B, P0096, P0111 or P00CE, GO to
EA2 .
For KOER DTCs P007B, P0096 or P00CE, GO to
EA4 .
For KOEO and continuous memory DTCs P0106 or P0236, GO to
EA5 .
For KOER DTCs P0106 or P0236, GO to
EA8 .
No
RETURN to
Section 3 , Symptom Charts for further direction.
EA2 CHECK FOR TEMPERATURE SENSOR CIRCUIT DTCS
Are DTCs P007B, P0096, P0111 or P00CE present along with other DTCs?
Yes No
DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to Section 4,
Diagnostic Trouble Code (DTC) Charts and Descriptions . GO to
EA3 .
EA3 CHECK FOR CAC_T, IAT, AND IAT2 VALUE CORRELATIONS
- Cold soak the vehicle at ambient temperature for at least 6 hours.
- Ignition ON, engine OFF.
- Access the PCM and monitor the CAC_T (TEMP), IAT (TEMP) and IAT2 (TEMP) PIDs.
Are the IAT, CACT and IAT2 temperature readings within 16.67°C (30°F) of each other?
Yes
UNABLE to duplicate or identify the concern at this time. Cold soak the vehicle at ambient temperature for at least 6 hours. REPEAT the self-test.
GO to
EA4 .
If no concern is present, GO to
EA9 .
No
For IAT sensor, GO to Pinpoint Test
DA .
For TCBP/CACT or MAP/IAT2, GO to Pinpoint Test
DN .
EA4 CHECK THE KOER CAC_T, IAT, AND IAT2 VALUES
- Allow the engine to idle at the normal operating temperature.
- Access the PCM and monitor the CAC_T (TEMP), IAT (TEMP) and IAT2 (TEMP) PIDs.
- Drive the vehicle at a steady speed of 88 km/h (55 mph) for a minimum of 6 minutes.
Does the IAT temperature exceed 65.5°C (150°F), or does the CACT temperature exceed 104.4°C (220°F), or does the IAT2 temperature exceed 115.6°C (240°F)?
Yes
CHECK the charge air cooler (CAC) for debris and obstructed air flow. REPAIR as necessary.
If OK, INSTALL a new sensor for the sensor that exceeded the temperature limit. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls.
Clear the PCM DTCs. REPEAT the self-test.
No
GO to
EA9 .
EA5 CHECK FOR PRESSURE SENSOR CIRCUIT DTCS
Are DTCs P0106 or P0236 present along with other DTCs?
Yes
DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC.
GO to Section 4,
Diagnostic Trouble Code (DTC) Charts and Descriptions .
No
GO to
EA6 .
EA6 CHECK FOR KOEO BARO, MAP, TCBP VALUE CORRELATIONS
- Ignition ON, engine OFF.
- Access the PCM and monitor the BARO (PRESS), MAP (PRESS) and TCBP (PRESS) PIDs.
Are the BARO, MAP, and TCBP pressure readings within 10.35 kpa (1.5 psi) of each other?
Yes
GO to
EA7 .
No
For TCBP/CACT or MAP/IAT2, GO to Pinpoint Test
DN .
For BARO, GO to Pinpoint Test
DO .
EA7 CHECK FOR PRESSURE SENSOR INLET RESTRICTIONS
- Remove the TCBP/CACT or MAP/IAT2 sensors. Refer to the Workshop Manual Section 303-14, Electronic Engine Controls.
- Carry out a visual inspection.
- Check the TCBP/CACT or MAP/IAT2 sensor port and inlet for:
- contamination
- restrictions
- carbon build-up or deposits
Is a concern present?
Yes
CLEAN or INSTALL a new sensor as necessary. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls.
Clear the PCM DTCs. REPEAT the self-test.
No
GO to
EA9 .
EA8 CHECK THE BARO, MAP AND TCBP VALUE CORRELATIONS
- Allow the engine to idle at the normal operating temperature.
- Access the PCM and monitor the BARO (PRESS) and TCBP (PRESS) PIDs.
Are the BARO and the TCBP readings within 6.9 kpa (1 psi) of each other?
Yes
INSTALL a new TCBP/CACT sensor. REFER to the Workshop Manual Section 303-14, Electronic Engine Controls.
Clear the PCM DTCs. REPEAT the self-test.
No
GO to
EA9 .
EA9 CHECK FOR CORRECT PCM OPERATION
- Disconnect all the PCM connectors.
- Visually inspect for:
- pushed out pins
- corrosion
- Connect all the PCM connectors and make sure they seat correctly.
- Carry out the PCM self-test.
- Verify the concern is still present.
Is the concern still present?
Yes
INSTALL a new PCM. REFER to Section 2,
Flash Electrically Erasable Programmable Read Only Memory (EEPROM) , Programming the VID Block for a Replacement PCM.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
