DTC Troubleshooting: P2073
DTC P2073: MAP Sensor Signal Higher Than Expected
NOTE:
Before you troubleshoot, review the general troubleshooting information.
Before you begin, check for poor connections or a blockage at the intake air duct.

DTC Description
Confirmed DTC
Pending DTC
P2073 MAP Sensor Signal Higher Than Expected
    

1.
Vacuum leak check:

Vacuum leak check
?1.
Check for vacuum leaks in these parts:
PCV valve
PCV hose
EVAP canister purge valve
Throttle body
Intake manifold
Brake booster
Brake booster hose
All parts through the turbocharger joint to the throttle body

Are there any vacuum leaks?

     
YES
     
     
     
Repair or replace the parts with vacuum or air leaks.?
     
NO
     
     
     
Go to step 2.
2.
MAP sensor performance check 1:

MAP sensor performance check 1
?1.
Turn the vehicle to the ON mode.

?2.
Compare the value of the parameter(s) below with the HDS.
Signal
Current conditions
Values
Unit
MAP Sensor (Hi Res)
    
TC Boost Pressure
    

Does the vehicle differ more than 26.7 kPa (7.9 inHg, 200 mmHg)?

     
YES
     
     
     
     
NO
     
     
     
Go to step 3.
3.
MAP sensor performance check 2:

MAP sensor performance check 2
?1.
Note the value of MAP Sensor in the DATA LIST with the HDS.
Signal
Current conditions
Values
Unit
MAP Sensor (Hi Res)
    

?2.
Start the engine and let it idle.

?3.
Check the MAP Sensor in the DATA LIST with the HDS.
Signal
Current conditions
Values
Unit
MAP Sensor (Hi Res)
    

Does the MAP Sensor change 0.67 kPa (0.2 inHg, 5 mmHg) or more?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
4.
Problem verification:

Problem verification
?1.
Clear the DTC with the HDS.


?2.
Start the engine. Hold the engine speed at 3,000 rpm without load (CVT in P or N, M/T in neutral) until the radiator fan comes on.

?3.
Test-drive the vehicle under these conditions:
Engine speed between 1,700 rpm or more
CVT in D, M/T in 4th or 5th
REL TP SENSOR above 42.2 deg
Drive 5 seconds or more

Signal
Current conditions
Values
Unit
ENGINE SPEED
    
REL TP Sensor
    

?4.
Monitor the OBD STATUS for DTC P2073 in the DTCs MENU with the HDS.
DTC Description
OBD STATUS
P2073 MAP Sensor Signal Higher Than Expected
  

Does the HDS indicate FAILED?

     
YES
     
     
     
The failure is duplicated. Replace the MAP sensor.?
     
NO
     
     
     
If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the MAP sensor and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot. If the HDS indicates NOT COMPLETED, go to step 4-3 and recheck.?