DESCRIPTION |
DTC No. | DTC Detection Condition |
Trouble Area | | P006A |
After
the engine is warmed up and the engine is idled for 30 seconds or more,
the intake manifold pressure malfunction determination value is higher
than the threshold value due to an intake leak. (1 trip detection logic) |
- Intake system
- Mass air flow meter
- PCV valve and hose
- PCV hose connections
- Manifold absolute pressure sensor
- EGR valve
- ECM
| MONITOR DESCRIPTION
The MIL illuminates when irregular intake manifold pressure is detected due to an intake leak.
HINT: When the DTC is stored, the following fail-safe operations occur:
- Idling up is performed.
- VVT operation is stopped.
- Updating A/F learning value is prohibited.
- Fuel cut is prohibited.
- ISC flow rate is increased (ISC feedback is stopped).
MONITOR STRATEGY |
Related DTCs | P006A: MAP - mass or volume air flow correlation | |
Required Sensors/Components (Main) |
| | Required Sensors/Components (Related) |
- | | Frequency of Operation |
Continuous | | Duration |
1 second | | MIL Operation |
Immediately | | Sequence of Operation |
None | TYPICAL ENABLING CONDITIONS |
Monitor runs whenever following DTCs not present |
P0010, P0020 (VVT oil control valve) P0011, P0021 (VVT system - Advance)
P0012, P0022 (VVT system - Retard) P0013, P0023 (Exhaust VVT oil control valve)
P0014, P0024 (Exhaust VVT system - Advance) P0015, P0025 (Exhaust VVT system - Retard)
P0016, P0018 (VVT system - Misalignment) P0017, P0019 (Exhaust VVT system - Misalignment)
P0031, P0032, P0051, P0052, P101D, P103D (Air fuel ratio sensor heater)
P0107, P0108 (Manifold absolute pressure) P0101, P0102, P0103 (Mass air flow meter)
P0112, P0113 (Intake air temperature sensor) P0115, P0117, P0118 (Engine coolant temperature sensor)
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor)
P0125 (Insufficient Coolant Temperature for Closed Loop Fuel Control)
P014C,
P014D, P014E, P014F, P015A, P015B, P015C, P015D, P2195, P2196, P2197,
P2198, P2237, P2238, P2239, P2240, P2241, P2242, P2252, P2253, P2255,
P2256 (Air fuel ratio sensor) P0171, P0172, P0174, P0175 (Fuel system)
P0327, P0328, P032C, P032D, P0332, P0333, P033C, P033D (Knock Sensor)
P0335 (Crankshaft position sensor) P0340, P0342, P0343, P0345, P0347, P0348 (VVT sensor)
P1340 (Camshaft position sensor) P0351 - P0358 (Igniter) P0365, P0367, P0368, P0390, P0392, P0393 (Exhaust VVT sensor)
P0412, P0415, P0418, P0419, P1613, P1614 (Secondary Air Injection System Control)
P0500 (Vehicle speed sensor) P106A (Evaporative Emission System Pressure Sensor)
P2440, P2441, P2442, P2443, P2444, P2445, P2446, P2447 (Secondary Air Injection System) | |
Time after engine start | 5 seconds | |
Engine coolant temperature | 70°C (158°F) or higher | |
Intake air temperature | 5.5°C (41.9°F) or higher | |
Atmospheric pressure | 76 kPa (570 mmHg) or higher | |
Engine load fluctuation (per 8 msec.) |
10% or less | | VVT system |
Stable | | EGR valve |
Closed | | Engine speed |
250 to 2000 rpm | | Engine load (normal operation) |
35% or less | | Engine load (fail-safe) |
41% or less | TYPICAL MALFUNCTION THRESHOLDS |
Pressure correlation | 24 kPa (180 mmHg) or higher | CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear DTCs (even if no DTCs are stored, perform the clear DTC operation).
- Turn the ignition switch off and wait for at least 30 seconds.
- Turn the ignition switch to ON and turn the Techstream on.
- Start the engine and warm it up (until the engine coolant temperature is
75°C (167°F) or higher) with the A/C switch and all accessory switches
off and the shift lever in P or N.
- Idle the engine for 30 minutes or more [A].
- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [B].
- Read the pending DTCs.
HINT:
- If a pending DTC is output, the system is malfunctioning.
- If a pending DTC is not output, perform the following procedure.
- Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
- Input the DTC: P006A.
- Check the DTC judgment result.
|
Tester Display |
Description |
|
NORMAL |
- DTC judgment completed
- System normal
|
|
ABNORMAL |
- DTC judgment completed
- System abnormal
|
|
INCOMPLETE |
- DTC judgment not completed
- Perform driving pattern after confirming DTC enabling conditions
|
|
N/A |
- Unable to perform DTC judgment
- Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit
|
HINT:
If the judgment result shows INCOMPLETE or N/A, perform steps [A] through [B] again.
- If no pending DTC is output, perform a universal trip and check for permanent DTCs (See page
 ).
HINT:
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.
CAUTION / NOTICE / HINT HINT: Read
freeze frame data using the Techstream. Freeze frame data records the
engine condition when malfunctions are detected. When troubleshooting,
freeze frame data can help determine if the vehicle was moving or
stationary, if the engine was warmed up or not, if the air-fuel ratio
was lean or rich, and other data from the time the malfunction occurred. PROCEDURE
| 1. |
CHECK ANY OTHER DTCS OUTPUT | (a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON. (c) Turn the Techstream on.
(d) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or more.
(e) Drive the vehicle at 60 km/h (37 mph) for 5 minutes or more. (f) Idle the engine for 30 seconds or more.
(g) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(h) Read the DTCs. |
Result | Proceed to | |
P006A | A | |
P006A and other DTCs are output |
B | HINT: If any DTCs other than P006A are output, perform troubleshooting for those DTCs first.
| B |
 | GO TO DTC CHART |
|
A |
 | |
| 2. |
CHECK PCV HOSE (HOSE CONNECTION) | (a) Check the PCV hose connections (See page
). OK: PCV hose is connected correctly and is not damaged.
| NG |
| REPAIR OR REPLACE PCV HOSE |
|
OK | |
| |
(a) Check the intake system for vacuum leaks (See page
). OK: No leaks in intake system.
HINT: Perform "Inspection After Repair" after repairing or replacing the intake system (See page
).
| NG | |
REPAIR OR REPLACE INTAKE SYSTEM |
|
OK | |
| |
| 4. |
READ VALUE USING TECHSTREAM (MAP) | (a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON. (c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Engine and ECT / Data List / MAP.
(e) Read the MAP value. Standard: |
Engine Condition | Techstream Display | |
Ignition switch ON | 85 to 110 kPa (638 to 825 mmHg) |
HINT: Standard
atmospheric pressure is 101 kPa. For every 100 m increase in altitude,
pressure drops by 1 kPa. Varies by weather (high atmospheric pressure,
low atmospheric pressure). Also, check "Atmosphere Pressure" in the Data List.
| OK |
| GO TO STEP 6 |
|
NG | |
| |
| 5. |
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR |
(a) Replace the manifold absolute pressure sensor (See page
).
|
NEXT | |
| |
| 6. |
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE EGR STEP POSITION) |
(a) Connect the Techstream to the DLC3. (b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.
HINT:
- When performing the Active Test, make sure the shift lever is in P or N.
- The A/C switch and all accessory switches should be off.
(c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the EGR Step Position.
(e)
Confirm the Throttle Idle Position is ON and check the engine idling
condition and MAP values in the Data List while performing the Active
Test.
HINT:
- Do not leave the EGR valve open for 10 seconds or more during the Active Test.
- Be sure to return the EGR valve to step 0 when the Active Test is completed.
OK: MAP and idling condition change in response to EGR step position as follows.
Standard: |
- | EGR Step Position (Active Test) | |
0 Steps | 0 to 30 Steps | |
Idling condition | Steady idling |
Idling changes from steady to rough idling or engine stall | |
MAP (Data List) |
20 to 40 kPa (150 to 300 mmHg) |
MAP value is at least +10 kPa (75 mmHg) higher than when EGR valve is fully closed |
| OK |
| GO TO STEP 8 |
|
NG | |
| |
| 7. |
INSPECT EGR VALVE ASSEMBLY | (a) Remove the EGR valve assembly (See page
). (b) Check if the EGR valve assembly is stuck open.
OK: EGR valve is tightly closed. HINT: Perform "Inspection After Repairs" after replacing the EGR valve assembly (See page
).
| NG | |
REPLACE EGR VALVE ASSEMBLY |
|
OK | |
| |
| 8. |
CHECK WHETHER DTC OUTPUT RECURS (DTC P006A) |
(a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON and turn the Techstream on.
(c) Clear the DTC (See page ). (d)
Start the engine and warm it up (until the engine coolant temperature
is 75°C (167°F) or higher) with all the accessories switched off. HINT:
The A/C switch and all accessory switches should be off, and the shift lever should be in N or P.
(e) Idle the engine for 30 seconds or more. (f) Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
(g) Read the DTCs. |
Result | Proceed to | |
P006A is output | A | |
No DTC output | B |
| B |
| END |
|
A | |
| |
| 9. |
INSPECT MASS AIR FLOW METER | (a) Connect the Techstream to the DLC3.
(b) Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.
HINT: The A/C switch and all accessory switches should be off, and the shift lever should be in N or P.
(c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Engine and ECT / Data List / MAF.
(e) Check MAF in the Data List during idling. Standard: 3.4 to 6.2 gm/sec
HINT: Perform "Inspection After Repairs" after replacing the mass air flow meter (See page
).
| OK | |
REPLACE ECM |
| NG |
| REPLACE MASS AIR FLOW METER | |
