DTC P2073

DTC P2073  : MAP Sensor Signal Higher Than Expected

DTC (PGM-FI)

1. 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

   Are there any vacuum leaks?

   YES 

   Repair or replace the parts with vacuum leaks.

   NO 

   Go to step 2.

2. MAP sensor performance check

   -1. Start the engine. Hold the engine speed at 3, 000 rpm without load (in P or N) until the radiator fan comes on, then let it idle.

   - 2. Check the parameter(s) below with the HDS for 5 seconds.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   MAP SENSOR	More than 36.9	kPa

   Did the value maintain the malfunction threshold for 5 seconds or more?

   YES 

   Replace the MAP sensor .

   NO 

   Go to step 3.

3. Problem verification

   -1. Clear the DTC with the HDS.

   - 2. Test-drive under these conditions:

   • Engine coolant temperature (ECT SENSOR 1) above 158 °F (70 °C)
   • Engine speed between 1, 400-6, 700 rpm
   • Transmission in D
   • Drive at a steady speed between 55-75 mph (90-120 km/h) for 10 seconds, then decelerate (with the throttle fully closed) for 5 seconds

   Signal	Current conditions
   	Values	Unit
   ECT SENSOR 1
   ENGINE SPEED
   VEHICLE SPEED

   - 3. 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 HDS indicates NOT COMPLETED, go to step 3-2 and recheck.