Secondary air pump and relay location?

Tiny
HEAVYTRUCK
  • MEMBER
  • 2008 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 170,811 MILES
I need to know where the air injection relay is please.
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Tuesday, May 10th, 2016 AT 1:38 PM

23 Replies

Tiny
HMAC300
  • EXPERT
Secondary Air Injection (AIR) Pump Relay Left front of engine compartment, near air cleaner duct. There is no solenoid it may be part of assembly of pump. There is a check valve both are in pictures. Check out the diagrams (Below). Please let us know what happens.
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Tuesday, May 10th, 2016 AT 3:38 PM
Tiny
EDWARD4
  • MEMBER
  • 2005 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 25,000 MILES
Where is this air pump located on a 2005 pontiac grand prix
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Tuesday, June 25th, 2019 AT 4:29 PM (Merged)
Tiny
WRENCHER1
  • MEMBER
Hello,

The air pump is located On left front frame rail, forward of fenderwell.

https://www.2carpros.com/images/external/117396613.gif

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Cheers
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Tuesday, June 25th, 2019 AT 4:29 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
It doesn't have a traditional air pump. It has a Secondary Air Injection Reaction Pump & Solenoid.

I have attached a picture.
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Tuesday, June 25th, 2019 AT 4:29 PM (Merged)
Tiny
WRENCHER1
  • MEMBER
GM still uses air pumps. They are just electric now.
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Tuesday, June 25th, 2019 AT 4:29 PM (Merged)
Tiny
IL0VELLAMAS
  • MEMBER
  • 2001 PONTIAC GRAND PRIX
6 cyl Front Wheel Drive Automatic 94000 miles

My 01 grand prix gt has the ses light on and is throwing a code P0410 secondary air injection system, which means water in the air pump. Problem is I cannot find the air pump on my car! I was told it was on the drivers side under the airbox, but the part has a pulley on it, and the only belts I see are on the passenger side. So where is my air pump?
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Tuesday, June 25th, 2019 AT 4:29 PM (Merged)
Tiny
KEN
  • ADMIN
Hello,

This air pump is electric. That may be why they said it's on the lower left driver's side of the car. Check to see if you have a relay or fuse that is blown as this may be your problem as well.

Here is a guide to help you test for power and how to test the relay

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (Below)

Please run this test and get back to us.

Cheers, Ken
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Tuesday, June 25th, 2019 AT 4:29 PM (Merged)
Tiny
SLNIEMAN
  • MEMBER
  • 2008 PONTIAC GRAND PRIX
  • 3.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Where is the secondary air pump solenoid relay located?
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Wednesday, July 29th, 2020 AT 5:56 PM (Merged)
Tiny
PATENTED_REPAIR_PRO
  • EXPERT
Left front of engine compartment near the air cleaner duct.
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Wednesday, July 29th, 2020 AT 5:56 PM (Merged)
Tiny
TRACIE1019
  • MEMBER
  • 2006 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 66,850 MILES
Did not pass inspection in Texas and my daughters husband is deployed and they want to charge her money just to look at it. I went to auto zone checked the connector and wiring no problem. Checked fuses none blown. And changed air filter but the check engine light wont go out.
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Wednesday, July 29th, 2020 AT 5:56 PM (Merged)
Tiny
ERNEST CLARK
  • EXPERT
Here's a discription of your system. Unfortunately, there's many things that can go wrong with this system. Without knowing the specific code, there's no way I can narrow it down for you. At the very end are possible codes that can be set for this system. Also, most shops will charge to diagnose this system because it's fairly complicated.

SECONDARY AIR INJECTION (AIR) SYSTEM DESCRIPTION

The Secondary Air Injection (AIR) System aids in the reduction of hydrocarbon exhaust emissions during a cold start-up. This occurs when the start-up engine coolant temperature (ECT) is between 5-50 C (41-122 F), and the intake air temperature (IAT) is between 5-60 C (41-140 F). The AIR pump operates 5-60 seconds after start-up.

The powertrain control module (PCM) activates the AIR system by simultaneously supplying grounds to the AIR pump and the AIR valve relays. This action closes the relays' internal contacts. The AIR pump and the AIR control solenoid valve/pressure sensor assembly are in turn energized, the pump runs and the control/shut-off valve opens.

The AIR pump sends pressurized fresh air into the pipes/hoses through the open control/shut-off valve, and into the bank 2 exhaust manifold. The extra air accelerates the catalyst operation, helping it to reach operating temperature faster. The AIR pump remains ON for a short period of time after the control/shut-off valve is commanded OFF. When the AIR pump is commanded OFF it will not run or be activated until the next vehicle start. When the AIR system is inactive, the closed AIR control/shut-off valve prevents air/exhaust flow in either direction.

The AIR system pressure sensor is used to monitor pressure at the AIR control solenoid valve/pressure sensor assembly inlet, during the commanded ON/OFF states.

The AIR system includes the following components:

The AIR pump-The electric AIR pump supplies pressurized, filtered air to the AIR control/shut-off valve. The AIR pump is a turbine type pump that is permanently lubricated and requires no periodic maintenance.
The AIR solenoid-The AIR solenoids opens the AIR control/shut-off valve when the solenoid is energized by the AIR solenoid relay.
IMPORTANT: The AIR solenoid, control/shut-off valve, and the pressure sensor are serviced as an assembly.

The AIR control solenoid valve/pressure sensor assembly-The AIR control solenoid valve/pressure sensor assembly has a solenoid mounted valve. When the valve is open by the solenoid, pressurized air from the AIR pump flows through the control solenoid valve/pressure sensor assembly and is directed into the bank 2 exhaust manifold through an outlet pipe.
IMPORTANT: An audible exhaust or fluttering noise may be heard at the control solenoid valve/pressure sensor assembly inlet when the valve is open and the AIR hose is removed from the control solenoid valve/pressure sensor assembly.

The AIR pressure sensor-The AIR pressure sensor is a part of the AIR control solenoid valve/pressure sensor assembly. The sensor is a 3-wire sensor that measures the AIR system pressure at the AIR control solenoid valve/pressure sensor assembly inlet.
The AIR pump relay-The AIR pump relay supplies high current and battery voltage to the AIR pump. The PCM commands the relay ON by supplying a ground to the relay control circuit.
The AIR valve relay-The AIR valve relay supplies high current and battery voltage to the AIR solenoid. The PCM commands the relay ON by supplying a ground to the relay control circuit.
The pipes and hoses-The AIR system hose carries filtered air from the engine air cleaner to the AIR pump inlet. The pipe/hoses carry the air from the AIR pump to the AIR control solenoid valve/pressure sensor assembly and on to the exhaust manifold.
The inlet filter-The AIR system does not have a separate inlet air filter. Filtered air is drawn from the engine air cleaner assembly.
Results of Incorrect Operation
The powertrain control module (PCM) monitors the Secondary air injection (AIR) System for faults during cold start-up operation. When the system's pressure or relay circuits operations vary too far from the predicted values, a DTC will set. Diagnostics detect the following conditions:

A partially blocked or leaking AIR system
A malfunctioning AIR pump
A malfunctioning AIR control solenoid valve/pressure sensor assembly
A malfunctioning AIR pressure sensor
A restricted exhaust system, forward of the catalytic converter
A malfunctioning AIR pump and AIR valve relay
The following DTCs set when an AIR system fault is detected:

DTC P0411-An AIR system insufficient airflow fault condition has been detected.
DTC P0412-An AIR valve relay coil circuit fault condition has been detected.
DTC P0418-An AIR pump relay coil circuit fault condition has been detected.
DTC P2430-An AIR pressure sensor stuck in range fault condition has been detected.
DTC P2431-An AIR pressure sensor range/performance fault condition has been detected.
DTC P2432-An AIR pressure sensor signal voltage below the minimum range of the sensor fault condition has been detected.
DTC P2433-An AIR pressure sensor signal voltage is above the maximum range of the sensor fault condition has been detected.
DTC P2440-An AIR system airflow leak fault condition has been detected.
DTC P2444-An AIR pump stuck ON fault condition has been detected.
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Wednesday, July 29th, 2020 AT 5:56 PM (Merged)
Tiny
MREIGELMAN
  • MEMBER
  • 2006 PONTIAC GRAND PRIX
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 56,000 MILES
Car recently came up with trouble code P2440. I replaced the air injection pump and shut off valve about two months ago. Do you have any idea what might need to be replaced now? Thanks.
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Wednesday, July 29th, 2020 AT 5:57 PM (Merged)
Tiny
MMPRINCE4000
  • MEMBER
Did you reset the code, using a scanner?
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Wednesday, July 29th, 2020 AT 5:57 PM (Merged)
Tiny
MREIGELMAN
  • MEMBER
YES. I RESET THE CODE TWO DAYS AGO (WITH SCANNER) AND IT SHOWED UP AGAIN YESTERDAY. I RESET IT AGAIN, JUST WAITING TO SEE IF IT COMES BACK UP.
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Wednesday, July 29th, 2020 AT 5:57 PM (Merged)
Tiny
MMPRINCE4000
  • MEMBER
If code comes back you will have to take to dealer or trusted garage and have them test the valve.

They can isolate the valve with a high end scanner and command it to turn on/off.

If valve and pump are OK, then PCM will have to be tested.
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Wednesday, July 29th, 2020 AT 5:57 PM (Merged)
Tiny
MREIGELMAN
  • MEMBER
THANK YOU VERY MUCH.
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Wednesday, July 29th, 2020 AT 5:57 PM (Merged)
Tiny
AUNDRIA CARTER
  • MEMBER
  • 2000 PONTIAC GRAND PRIX
  • V8
  • FWD
  • AUTOMATIC
  • 200,100 MILES
Tried to get car inspected and car fail from secondary air injection got hose replaced but it is taking along time for the computer to come back on line when I had it put on the machine it had came back the secondary air injection so why it is taking so long for the computer to come back on line
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Wednesday, July 29th, 2020 AT 5:57 PM (Merged)
Tiny
MMPRINCE4000
  • MEMBER
Good luck, hope it is simple fix.
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Wednesday, July 29th, 2020 AT 5:57 PM (Merged)
Tiny
FIXITMR
  • MEMBER
Did you clear/erase the old codes?
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Wednesday, July 29th, 2020 AT 5:57 PM (Merged)
Tiny
AUNDRIA CARTER
  • MEMBER
  • 2000 PONTIAC GRAND PRIX
  • V8
  • FWD
  • AUTOMATIC
  • 200,100 MILES
Need to know about secondary air injection a 2000 grand prix
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Wednesday, July 29th, 2020 AT 5:57 PM (Merged)

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