Subaru Legacy IV (2008 year). Manual - part 411
GD(H4DOTC)-94
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BC:DTC P0410 SECONDARY AIR INJECTION SYSTEM
1. OUTLINE OF DIAGNOSIS
Detect NG judging from secondary air delivery pipe pressure, pulse of secondary air delivery pipe pressure
and secondary air pipe airflow amount.
2. ENABLE CONDITION
3. GENERAL DRIVING CYCLE
Perform diagnosis during secondary air pump operation
Secondary Parameters
Enable Conditions
Pump supply pressure check
Estimate ambient temperature
t 4.4 °C
Battery voltage
t 10.9 V
Barometric pressure
t 75 kPa (563 mmHg,
22.2 inHg)
Engine
In operation
Amount of intake air
t 2 g/s (0.07 oz/s)
Secondary air pump
Operating
Combination valve
Bank open (Except
with both banks
closed)
Combination valve both closed pulse
diagnosis
Estimate ambient temperature
t 4.4 °C
Battery voltage
t 10.9 V
Barometric pressure
t 75 kPa (563 mmHg,
22.2 inHg)
Engine
In operation
Engine load
t 0.2 g/rev (0.01 oz/rev)
After fuel cut
t 1000 ms
Combination valve changeover pres-
sure diagnosis
Estimate ambient temperature
t 4.4 °C
Battery voltage
t 10.9 V
Barometric pressure
t 75 kPa (563 mmHg,
22.2 inHg)
Engine
In operation
Amount of intake air
> 2 g/s (0.07 oz/s)
and
< 25 g/s (0.88 oz/s)
Engine speed
< 4000 rpm
After fuel cut
t 1000 ms
Overflow diagnosis
Estimate ambient temperature
t 4.4 °C
Battery voltage
t 10.9 V
Barometric pressure
t 75 kPa (563 mmHg,
22.2 inHg)
Engine
In operation