Honda Element. Manual — part 84

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

The secondary HO2S output voltage is 0.293 V or more.

Driving Pattern

1. Start the engine. Let it idle until the radiator fan comes on.

2. Drive the vehicle at a steady speed of 35 mph (57 km/h) or more for at least 24.6 seconds.



Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Execution

Once per driving cycle

Sequence

None

Duration

24.6 seconds or less

DTC Type

Two drive cycles, MIL ON

OBD Status

PASSED/FAILED/EXECUTING/OUT OF (TEST) CONDITION

Condition

Minimum

Maximum

Elapsed time that
secondary HO2S
activity is not
monitored after starting
the engine

15 seconds

-

Elapsed time after the
fuel cut-off

-

185 seconds

Engine coolant
temperature

156 °F (69 °C)

-

Intake air temperature

-13 °F (-25 °C)

-

Engine speed

A/T

1,300 rpm

2,600 rpm

M/T

1,825 rpm

3,400 rpm

MAP value

27 kPa (7.9 in.Hg, 200 mmHg)

79 kPa (23.6 in.Hg, 600 mmHg)

Vehicle speed

30 mph (48 km/h)

-

Fuel trim

0.69

1.47

Fuel feedback

Closed loop

No active DTCs

P0010, P0011, P0101, P0102, P0103, P0107, P0108, P0111, P0112, P0113,
P0117, P0118, P0133, P0134, P0135, P0137, P0138, P0141, P0171, P0172,
P0300, P0301, P0302, P0303, P0304, P0335, P0339, P0340, P0341, P0344,
P0443, P0496, P0497, P1009, P1128, P1129, P1157, P1172, P145C, P2195,
P2238, P2252, P2270, P2646, P2647, P2648, P2649, P2A00

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Diagnosis Details

Conditions for illuminating the MIL

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the ECM/PCM
memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and the
freeze frame data are stored.

Conditions for clearing the MIL

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the diagnostic
runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool Clear
command or by disconnecting the battery.

DTC P2422 (117): ADVANCED DIAGNOSTICS

DTC P2422: EVAPORATIVE EMISSION (EVAP) CANISTER VENT SHUT VALVE STUCK
CLOSED MALFUNCTION

Fig. 241: FTP Sensor Output And Purge Flow

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Fig. 242: Malfunction Judgement Flow Chart Of FTP Sensor And EVAP Canister Vent Shut Valve

General Description

The fuel tank pressure (FTP) sensor output indicates about atmospheric pressure 0 kPa (0 in.Hg, 0 mmHg)
before purge starts since the evaporative emission (EVAP) canister vent shut valve is normally open (open to
the atmosphere). The sensor indicates a negative pressure value (vacuum) during purging.

When the FTP sensor indicates vacuum after starting the engine, there is the possibility of an FTP sensor zero
point shift failure or an EVAP canister vent shut valve stuck closed failure. So the engine control module
(ECM)/powertrain control module (PCM) monitors the FTP sensor output after purge starts. The ECM/PCM
detects a malfunction of the EVAP canister vent shut valve if the output indicates excessive vacuum.

However, if the fuel tank internal pressure is below the specified value (excessive vacuum is detected) when
starting the engine, the malfunction detection should be done as follows because it is difficult to distinguish the
FTP sensor range problem (P1454) from the EVAP canister vent shut valve stuck closed (P2422).

1. If neither Temporary DTC (P1454 nor P2422) is stored, both DTCs are stored.

2. If both Temporary DTCs (P1454 and P2422) are stored and excessive vacuum is detected, both DTCs are

stored.

3. If either Temporary DTC (P1454 or P2422) is stored and excessive vacuum is detected, the ECM/PCM

stores the DTC of the Temporary DTC that was stored.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status

MONITOR DESCRIPTION

Execution

Once per driving cycle

Sequence

P0452, P0453 are judged as OK

Duration

1.04

(1)

, 8

(2)

seconds or more

DTC Type

Two drive cycles, MIL ON

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

The output from the fuel tank pressure sensor is -4 kPa (-1.0 in.Hg, -25 mmHg)*, -2 kPa (-0.4 in.Hg, -10
mmHg)** or less for at least 1.04*, 8** seconds.

*: Elapsed time after the FTP sensor output exceeds the malfunction threshold.

**: Excessive negative pressure is detected.

Confirmation Procedure with the HDS

Do the EVAP CVS ON in the INSPECTION MENU with the HDS.

Driving Pattern

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

Diagnosis Details

Conditions for illuminating the MIL

OBD Status

PASSED/FAILED/NOT COMPLETED (STILL TESTING)

(1)

Elapsed time after the FTP sensor output exceeds the malfunction threshold.

(2)

Excessive negative pressure is detected.

Condition

Minimum

Maximum

Elapsed time after
starting the
engine**

10 seconds

-

Engine coolant
temperature

(1)

131 °F (55 °C)

-

Battery voltage

10.5 V

-

Fuel feedback

Closed loop

No active DTCs

P0101, P0102, P0103, P0107, P0108, P0117, P0118, P0134, P0135, P0300, P0301,
P0302, P0303, P0304, P0335, P0339, P0351, P0352, P0353, P0443, P0451, P0452,
P0496, P0497, P0498, P0499, P1128, P1129, P1157, P1172, P145C, P2195, P2227,
P2228, P2229, P2238, P2252

Others

The EVAP canister vent shut valve has not been closing
Stopping the purge control

(1)

Condition to start the purge control.

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element