Subaru Legacy IV (2008 year). Service manual — part 445
GD(H4DOTC)-230
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
EM:DTC P2433 SECONDARY AIR INJECTION SYSTEM AIR FLOW /PRESSURE
SENSOR CIRCUIT HIGH
1. OUTLINE OF DIAGNOSIS
Judge as NG if out of specification.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
4. DIAGNOSTIC METHOD
• Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis: 500 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
• Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.
Time Needed for Diagnosis: Less than 1 second
Secondary Parameters
Enable Conditions
None
Judgement Value
Malfunction Criteria
Threshold Value
Ignition switch
ON
Output voltage
> 4.921 V
Judgement Value
Malfunction Criteria
Threshold Value
Ignition switch
ON
Output voltage
d 4.921 V
GD(H4DOTC)-231
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
EN:DTC P2440 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE
STUCK OPEN (BANK1)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P0410. <Ref. to GD(H4DOTC)-94, DTC P0410 SECONDARY AIR
INJECTION SYSTEM, Diagnostic Trouble Code (DTC) Detecting Criteria.>
EO:DTC P2441 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE
STUCK CLOSED (BANK1)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P0410. <Ref. to GD(H4DOTC)-94, DTC P0410 SECONDARY AIR
INJECTION SYSTEM, Diagnostic Trouble Code (DTC) Detecting Criteria.>
EP:DTC P2442 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE
STUCK OPEN (BANK2)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P0410. <Ref. to GD(H4DOTC)-94, DTC P0410 SECONDARY AIR
INJECTION SYSTEM, Diagnostic Trouble Code (DTC) Detecting Criteria.>
EQ:DTC P2443 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE
STUCK CLOSED (BANK2)
1. OUTLINE OF DIAGNOSIS
NOTE:
For the detection standard, refer to DTC P0410. <Ref. to GD(H4DOTC)-94, DTC P0410 SECONDARY AIR
INJECTION SYSTEM, Diagnostic Trouble Code (DTC) Detecting Criteria.>
GD(H4DOTC)-232
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
ER:DTC P2444 SECONDARY AIR INJECTION SYSTEM PUMP STUCK ON
1. OUTLINE OF DIAGNOSIS
Detect the secondary air pump malfunction (always ON).
After the secondary air pump turns to OFF, judge as NG if the secondary air pipe pressure is higher than that
before the secondary air pump operation.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
4. DIAGNOSTIC METHOD
• Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis: 8000 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
• Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.
Time Needed for Diagnosis: 8000 ms
Secondary Parameters
Enable Conditions
Battery voltage
t 7 V
Engine
In operation
Judgement Value
Malfunction Criteria
Threshold Value
Time since secondary air control com-
pletion
t 3000 ms
and
d 8000 ms
Secondary air pipe pressure – Second-
ary air pipe pressure before operation
> 6.7 kPa (50 mmHg,
2 inHg)
Judgement Value
Malfunction Criteria
Threshold Value
Time since secondary air control com-
pletion
t 3000 ms
and
d 8000 ms
Secondary air pipe pressure – Second-
ary air pipe pressure before operation
d 6.7 kPa (50 mmHg,
2 inHg)
FU(H6DO)-2
General Description
FUEL INJECTION (FUEL SYSTEMS)
1. General Description
A: SPECIFICATION
Fuel tank
Capacity
64
2 (16.9 US gal, 14.1 Imp gal)
Install locations
Under rear seat
Fuel pump
Type
Impeller
Shutoff discharge pressure
550 — 850 kPa (5.61 — 8.67 kg/cm
2
, 79.8 — 123.3 psi)
Discharge rate
155
2 (41 US gal, 34.1 Imp gal)/h or more
[12 V at 300 kPa (3.06 kg/cm
2
, 43.5 psi)]
Fuel filter
In-tank type
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