Subaru 4 You Subaru Secondary Air Pump
 
Share

Menu For Subaru4you    HOME

SERVICES
Menu For Subaru4you    CALIPER REFURB
Menu For Subaru4you    ENGINE BUILD
Menu For Subaru4you    REMAPPING
Menu For Subaru4you    ROLLING ROAD
Menu For Subaru4you    SERVICING
Menu For Subaru4you    UPGRADING

PARTS
Menu For Subaru4you    PERFORMANCE
         PACKS
Menu For Subaru4you    OFFERS
Menu For Subaru4you    CLEARANCE
Menu For Subaru4you    PARTS INDEX
          BRAKE
          CLUTCH
          CONSUMABLES
          COOLING
          ENGINE PARTS
          EXHAUSTS
          FUEL PARTS
          GAUGES & PODS
          HOSES
          INDUCTION
          SENSORS
          STYLING
          SUSPENSION
          TRANSMISSION
          TURBOS

INFORMATION
Menu For Subaru4you    ABOUT S4Y
Menu For Subaru4you    CONTACT & HELP
Menu For Subaru4you    EMAIL
Menu For Subaru4you    FEATURED
Menu For Subaru4you    FOR SALE
Menu For Subaru4you    GALLERY
Menu For Subaru4you    HOW IT WORKS
Menu For Subaru4you    MOT INFO
Menu For Subaru4you    NEWS AT S4YOU
Menu For Subaru4you    PRIVACY
Menu For Subaru4you    SITEMAP
Menu For Subaru4you    TERMS
Menu For Subaru4you    WARRANTY
OTHER PAGES
Menu For Subaru4you    LINKS
Menu For Subaru4you    TESTIMONIALS
2007 Subaru GB270    2007 GB270
2008 Subaru Legacy Diesel    2008 Diesel
2008 Subaru Impreza WRX STi    2008 STi
2009 Subaru Forester    2009 Forester
2011 Subaru Legacy Diesel    2011 Diesel
2011 Subaru Impreza WRX STi    2011 STi
Subaru BRZ    BRZ - GT86
2014 Subaru STi    2014 STI




Logo Logo Good Garage Scheme
Logo Hayward & Scott
Logo TurboDynamics
Logo Goodrich Braking
Logo BC-Racing
Logo Samco Hoses
Logo Greencotton Filters
Logo Exedy Clutch Logo
Logo Whiteline Suspension
Logo Black Diamond
Logo Mintex Brake Pads
Logo Cosworth
Logo KN Filters
Parts Department

Subaru Secondary Air Injection System



Ring to order or check availability
01635 35355

All prices Exclude VAT @ 20%
 Delivery extra.

Image (for display purposes only)

Subaru Secondary Air PumpSubaru Secondary Air PumpSubaru Secondary Air Pump
Images may differ depending on model

Genuine Subaru Secondary Air Valves
Genuine Subaru Secondary Air Pumps
Ring for Prices
Valves From £198 to £250
Pumps From £365 to £655
The price will depend on the model

All prices Exclude VAT @ 20%
 Delivery extra.

Fitting Service Available.

 


Subaru Secondary Air Pump & Secondary Air Valves



With a fault on the Secondary Air Injection System the following OBDII codes are possible depending on the make and model:

P1410 Secondary Air Injection System Switching Valve Stuck Open
P1444 Secondary Air Injection System Switching Valve Stuck Open
P1418 Secondary Air Injection System Control "A" Circuit Shorted
P2430 Secondary Air Injection System Air Flow/Press Sensor Circ Bank1
P2431 Secondary Air Injection System Air Flow/Press Sensor Circ Range/Perf Bank1
P2432 Secondary Air Injection System Air Flow/Press Sensor Circ Low Bank1
P2433 Secondary Air Injection System Air Flow/Press Sensor Circ High Bank1
P2434 Secondary Air Injection System Air Flow/Press Sensor Circ Interm/Erratic Bank1
P2435 Secondary Air Injection System Air Flow/Press Sensor Circ Bank2
P2436 Secondary Air Injection System Air Flow/Press Sensor Circ Range/Perf Bank2
P2437 Secondary Air Injection System Air Flow/Press Sensor Circ Low Bank2
P2438 Secondary Air Injection System Air Flow/Press Sensor Circ High Bank2
P2439 Secondary Air Injection System Air Flow/Press Sensor Circ Interm/Eratic Bank2
P2440 Secondary Air Injection System Switching Valve Stuck Open Bank1
P2441 Secondary Air Injection System Switching Valve Stuck Closed Bank1
P2442 Secondary Air Injection System Switching Valve Stuck Open Bank2
P2443 Secondary Air Injection System Switching Valve Stuck Closed Bank2
P2444 Secondary Air Injection System Pump Stuck On Bank1
P2445 Secondary Air Injection System Pump Stuck Off Bank1
P2446 Secondary Air Injection System Pump Stuck On Bank2
P2447 Secondary Air Injection System Pump Stuck Off Bank2

Possible Causes:

Short in Air Pump circuit
Blown Fuse
Fault in Air pump assembly
Faulty Pressure Sensor
Pressure Sensor harness is open or shorted
Pressure Sensor circuit poor electrical connection
Secondary Air Valve Stuck Open
Secondary Air Valve Stuck Closed
Air Switching Valve harness is open or shorted
Air Switching Valve circuit poor electrical connection

How it works

When the engine is cold, on start up and for up to 60 seconds air is injected into the exhaust to clean up the extra-rich exhaust and raises the temperature of the exhaust to bring the catalytic converter to operating temperature quickly. To accelerate the activation of catalyst when warming up the engine, the secondary air injection system pumps the air to the exhaust system by an air pressure pump. The secondary air is supplied by the air pump and it is pumped to the exhaust through the air switching valves (AKA Secondary Air Injection Valves). Open and close movement of the air switching valve is regulated by the Vacuum Switching Valve (VSV).The air pump and the air switching valve are observed by the Engine Control Module (ECM AKA Engine Management System AKA Engine Control Unit AKA ECU) and are used to detect malfunction in this system. The ECM monitors the secondary air injection system and detects the malfunction using a pressure sensor located on the air switching valve.

The ECM observes the pressure in the secondary air passage using the pressure sensor located on the air switching valve in the secondary air injection system. The sensor detects an exhaust pressure in the secondary air passage.

If the pressure level from the sensor in the Secondary Air Valve (air switching valve) has not reached a certain level despite the ECM turning on the air pump, or if the pressure level exceeds the threshold despite the ECM turning off the air pump, the ECM interprets this as a fault in the secondary air injection system and the code is set.

Common Problem
One of the more common problems with this type of secondary air injection system (and it is not restricted to Subaru cars, many other makes of car also have similar secondary air sytems fitted) is that the secondary air pump is pumping (often damp) air from the atmosphere directly through the secondary air valves and into the exhaust when the engine is cold. This damp air can condense moisure (water) inside the secondary air valves. The air valves close after approximately 40 seconds and the moisture is trapped before the secondary air valves can get hot enough to evaporate the moisture. This can cause corrosion inside the valves leading to the valves(s) sticking open or closed.



















hayward & scott  Exedy Clutch  black diamond  Bailey Dump Valves  Mintex 
Logo BC-Racing Logo Goodrich Braking Logo Logo Good Garage Scheme Logo Samco Hoses Logo Hayward & Scott

Logo Cosworth Logo K&N Filters Logo Exedy Clutch Logo Logo TurboDynamics Logo Greencotton Filters

Logo Mintex Brake Pads Logo Black Diamond Logo Whiteline Suspension Logo Eibach Springs Logo Ultra Lighting

©Subaru 4 you Ltd  |   Home   |   Parts  |   Terms








































Subaru Cosworth Head gasket Subaru Cometic Head gasket. High performance Cosworth & Cometic Multi layer steel head gasket, Cosworth Head gasket. Subaru 4you introduced a more advanced Cosworth & Cometic Multi layer steel head gasket, the Subaru Cosworth & Cometic Multi layer steel head gasket. Multi Layer Steel Head Gasket, subaru impreza Multi Layer Steel Head Gasket, Subaru impreza Cosworth & Cometic Multi layer steel head gasket replacement, Subaru Forester Cosworth & Cometic Multi layer steel head gasket replacement, Subaru Forester Multi Layer Steel Head Gasket, Subaru Legacy Cosworth & Cometic Multi layer steel head gasket replacement, Subaru Legacy Multi Layer Steel Head Gasket, Subaru Cosworth Head gasket, Subaru Head Gasket, high performance Cosworth & Cometic Multi layer steel head gasket. EJ20 EJ201 EJ205 EJ207

Valid HTML 4.01 Transitional