Honda Element. Manual — part 27

When there is no fluctuation of the FTP sensor: P0497 purge flow NG

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

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

The output from the EVAP canister purge valve is 0.2 kPa (0.07 in.Hg, 2 mmHg) or more for at least 10
seconds.

Confirmation Procedure with the HDS

Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.

Driving Pattern

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator

fan comes on.

2. Let the engine idle for at least 92 seconds.

3. Turn off the ignition for at least 10 seconds.

Diagnosis Details

Execution

Once per driving cycle

Sequence

P145C is judged as OK

Duration

-

DTC Type

Two drive cycles, MIL ON

OBD Status

N/A

Condition

Minimum

Maximum

Low load duration time 10 seconds

-

Wait for stability after
the ignition is turned
off

10 seconds

-

Engine coolant
temperature before
EVAP purge control
starts

131 °F (55 °C)

-

No active DTCs

P0101, P0102, P0103, P0107, P0108, P0117, P0118, P0134, P0135, P0300,
P0301, P0302, P0303, P0304, P0335, P0339, P0443, P0451, P0452, P0453,
P0498, P0499, P0685, P1128, P1129, P1157, P1172, P1454, P2195, P2227,
P2228, P2229, P2238, P2252, P2422

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

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 P0497 (90): ADVANCED DIAGNOSTICS

DTC P0497: EVAPORATIVE EMISSION (EVAP) SYSTEM LOW PURGE FLOW

Fig. 73: Evaporative Emission (EVAP) System Purge Flow

General Description

The fuel (vapor) vaporized in the fuel tank is stored in the canister temporarily and introduced in the engine
through the evaporative emission (EVAP) canister purge valve. The engine control module (ECM)/powertrain
control module (PCM) controls the vapor amount introduced in the engine by repeating switching the power of
the EVAP canister purge valve at a constant frequency according to the condition of the engine.

< STEP 1 >

The EVAP canister purge valve drives normally (EVAP canister purge valve OPEN OK) and detects that the
purge flow is normal when the pulse of the EVAP canister purge valve drive cycle is transmitted to fuel tank
pressure (FTP) sensor by the purge flow (pulse method).

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

OK determination: Pulse exists (P145C OK)



P0497 Purge flow OK



P0496 EVAP canister purge valve Open fix OK

NG determination: No pulse (P145C NG)



Either purge flow P0497 abnormality or P0496 EVAP canister purge valve OPEN failure.



In this case, classify the failure part according to < STEP 2 >.

< STEP 2 >

In case there is no pulse, it is determined either no purge flow or EVAP canister purge valve OPEN fix as
follows:

When the FTP sensor fluctuates from negative pressure condition to atmospheric pressure side after the ignition
is turned off: P0496 EVAP canister purge valve OPEN fix

When there is no fluctuation of the FTP sensor: P0497 purge flow NG

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

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Execution

Once per driving cycle

Sequence

P145C is judged as OK

Duration

-

DTC Type

Two drive cycles, MIL ON

OBD Status

N/A

Condition

Minimum

Maximum

Low load duration time 10 seconds

-

Wait for stability after
the ignition is turned
off

10 seconds

-

Engine coolant
temperature before
EVAP purge control
starts

131 °F (55 °C)

-

No active DTCs

P0101, P0102, P0103, P0107, P0108, P0117, P0118, P0134, P0135, P0300,
P0301, P0302, P0303, P0304, P0335, P0339, P0443, P0451, P0452, P0453,
P0496, P0498, P0499, P0685, P1128, P1129, P1157, P1172, P1454, P2195,
P2227, P2228, P2229, P2238, P2252, P2422

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Malfunction Threshold

The output from the fuel tank pressure sensor is 0.2 kPa (0.07 in.Hg, 2 mmHg) or less for at least 10 seconds.

Confirmation Procedure with the HDS

Do the EVAP FUNCTION TEST in the INSPECTION MENU with the HDS.

Driving Pattern

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator

fan comes on.

2. Let the engine idle for at least 92 seconds.

3. Turn off the ignition for at least 10 seconds.

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 P0498 (117): ADVANCED DIAGNOSTICS

DTC P0498: EVAPORATIVE EMISSION (EVAP) CANISTER VENT SHUT VALVE CIRCUIT LOW
VOLTAGE

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element