Honda Element. Manual — part 30

Fig. 80: Air Control System Performance Graph

Fig. 81: Air Control System Malfunction Determination

General Description

The quick warm-up system supplies additional air and retards the ignition timing when the engine is cold to

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

activate the catalytic converter as quickly as possible.

When the actual amount of air is less than the target amount, a malfunction is detected and a DTC is stored.

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

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

The total airflow is decreased by a factor of 0.826 for at least 10 seconds.

Confirmation Procedure with the HDS

Do the ETCS TEST in the INSPECTION MENU with the HDS.

Driving Pattern

1. Allow the engine to cool to an ambient engine coolant temperature of 140 °F (60 °C) or less.

2. Start the engine, and let it idle for at least 10 seconds.

Diagnosis Details

Execution

Once per driving cycle

Sequence

None

Duration

10 seconds or more

DTC Type

Two drive cycles, MIL ON

OBD Status

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

Condition

Minimum

Maximum

Duration of quick
warm-up system
operation after
engine start-up

-

40 seconds

Engine coolant
temperature

32 °F (0 °C)

140 °F (60 °C)

Throttle position

Fully closed

No active DTCs

P0010, P0011, P0101, P0102, P0103, P0107, P0108, P0111, P0112, P0113, P0116,
P0117, P0118, P0122, P0123, P0125, P0222, P0223, P0300, P0301, P0302, P0303,
P0304, P0335, P0339, P0341, P0506, P0507, P1009, P1116, P1128, P1129, P2101,
P2108, P2118, P2122, P2123, P2127, P2128, P2135, P2138, P2176, P2227, P2228,
P2229, P2646, P2647, P2648, P2649

Other

Vehicle stopped

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 P050B (167): ADVANCED DIAGNOSTICS

DTC P050B: COLD START IGNITION TIMING PERFORMANCE

Fig. 82: Air Control System Performance Graph

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Fig. 83: Air Control System Malfunction Determination

General Description

The quick warm-up system supplies additional air and retards the ignition timing when the engine is cold to
activate the catalytic converter as quickly as possible.

When the actual engine speed is a specified value or more, and it continues for a specified time, a malfunction is
detected and a DTC is stored.

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

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Execution

Once per driving cycle

Sequence

None

Duration

3.5 seconds or more

DTC Type

Two drive cycles, MIL ON

OBD Status

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

Condition

Minimum

Maximum

Elapsed time after
starting the engine

2.5 seconds

-

Duration of quick
warm-up system
operation after
engine start-up

-

40 seconds

Engine coolant
temperature

32 °F (0 °C)

140 °F (60 °C)

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element