Question about Jaguar XJ6

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A.I.R. Pump Does the air pump need to be hooked up? I live in a non-emission state. The car has no power and exhaust gasses are back feeding in to the air lines. The metal tube that runs from air pump to the exhaust manifold is corroded and leaking, Is this the cause of no power?

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  • jdjgoble Apr 21, 2009

    My child breathes air also. I am looking for the best way to fix the problem with out spendind hundereds of dollar and possibly pullin engine to get to the tube.

  • jdjgoble Apr 22, 2009

    Thanks fot the obvious answer. Any ideas on how to do it with out taking off the intake manifold?

  • yadayada
    yadayada May 11, 2010

    try a goggle search for an owner who posted the procedure.

  • yadayada
    yadayada May 11, 2010

    replace it yourself.

  • yadayada
    yadayada May 11, 2010

    the air pump is very important part of the emission control system, it helps to burn waste fuel in the exhaust and assist in the catalyst function, if u disconnect it you pollute the air I and my children breath, fix the pump problem

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  • Jaguar Master
  • 22,219 Answers

Sounds like it to me ,but without seeing it ? its difficult to advise

Posted on Oct 31, 2009

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PO411 WHAT DOES THIS MEAN


Step 1:


What does tP0411 Secondary Air Injection System Incorrect Flow DetectedWhat does that mean? Secondary Air Injection is an emission control that uses an air pump (either electric or turned by the drive belt) to move fresh air into the exhausticon1.png manifold(s) or exhaust ports when the engine is in open loop and pre-catalytic converter when in closed loop. This reduces hydrocarbon emissions (HC), Carbon Monoxide (CO), and oxides of Nitrogen (NOx). This fresh air helps convert Carbon Monoxide (CO) into Carbon Dioxide (CO2) and Hydrocarbons (HC) into water vapor (H20).
A check valve is located in the air supply line to keep exhaust gasses from flowing into the pump. A cutoff valve that controls the airflow may be vacuum controlled or electrically controlled. When the powertrain control module (PCM) activates the valve, vacuum travels to the cutoff valve to open it and allow fresh air to flow. Some systems may have only a check valve and the flow may be regulated by a electromagnetic clutch on the air pump (similar to an A/C clutch).
Under hard acceleration, the air pump will be deactivated to prevent backfiring in the exhaust. To self-check, the AIR system will be activated by the PCM and fresh air would be routed into the exhaust system. The oxygen sensors would sense this fresh air as a lean condition and the short term fuelicon1.png trims would begin to move in the positive direction to compensate. The PCM expects to see this happen within just a few seconds during the self test. If it does not see the short term fuel trims rise, then the PCM interprets this as a malfunction in the AIR system and a code will be recorded.

Step 2:

Symptoms Symptoms of a P0411 DTC may include:
  • MIL (Malfunction Indicator Lamp) illumination
  • Backfiring in the exhaust under hard acceleration
  • Engineicon1.png running rich (This is counter-intuitive. See explanation below)
  • Squealing belt
Causes Potential causes of a P0411 code include:
  • Damaged or missing check valve
  • AIR pump intake port plugged/damaged
  • AIR pump clutch malfunction
  • Holes or damage to exhaust components

Step 3:

Possible Solutions If you have access to a scan tool, with KOEO (Key on engine off) command the AIR pump on. It should activate. If it doesn't, remove and inspect the AIR pump relay for discoloration/melting due to heat. Repair as necessary.
With the ignition on (engine off) check for battery voltage at the switched battery feed to the relay and the relay control circuit. If either of these isn't present, inspect circuit for blown fuse or open/short in the wiring. Repair cause of short and retest. If they are both present, jumper the battery feed to AIR pump feed circuit using a fused jumper. The pump should activate. If not, check for powericon1.png and ground present at the AIR pump when jumpered. If there is no voltage/ground present at pump repair open in wiring harness. If voltage and ground is present, but pump still does not run, suspect a bad AIR pump. If after jumpering the AIR pump feed circuit the pump activates then the problem is likely the AIR pump relay. Replace and retest.
If the scan tool activates the AIR pump, with KOER (Key on engine running) activate the AIR pump solenoid valve on and see if there is vacuum to the cutoff valve. It should have vacuum present to open the valve. If there is no vacuum present, check the AIR pump's vacuum solenoid valve for vacuum supply from the manifold. If there is vacuum present then the vacuum solenoid is likely bad. Replace it. If there is no vacuum present at the supply to the vacuum solenoid, check for a plugged or damaged vacuum line or plugged vacuum port. But if there is vacuum present at the cut-off valve, shut the engine off and using a vacuum pump, apply vacuum to the cut-off valve and see if it holds a vacuum and that air flows through it when vacuum is applied. If it doesn't hold vacuum or the valve doesn't flow when vacuum is applied, replace the cut-off valve. If the cut-off valve works properly, inspect the check valve for obstruction or to see if it's missing. Replace as necessary.
Check the steel line to the exhaust catalyst as well as the exhaust ports for damage or holes that could give a false reading.

Feb 19, 2013 | 2007 Buick LaCrosse CXL Sedan

1 Answer

I need help my car no pass inspection have codes p0455-p1414-and p0411 plz help me


Hi there:
Definetivelly you have a problem in the emission systems or some vacuum leak...
----------------------------------------------------------------------------------------------------------------------
DTC P0411 - Secondary Air Injection System Incorrect Flow Detected
Secondary Air Injection is an emission control that uses an air pump (either electric or turned by the drive belt) to move fresh air into the exhaust manifold(s) or exhaust ports when the engine is in open loop and pre-catalytic converter when in closed loop. This reduces hydrocarbon emissions (HC), Carbon Monoxide (CO), and oxides of Nitrogen (NOx). This fresh air helps convert Carbon Monoxide (CO) into Carbon Dioxide (CO2) and Hydrocarbons (HC) into water vapor (H20).

A check valve is located in the air supply line to keep exhaust gasses from flowing into the pump. A cutoff valve that controls the airflow may be vacuum controlled or electrically controlled. When the powertrain control module (PCM) activates the valve, vacuum travels to the cutoff valve to open it and allow fresh air to flow. Some systems may have only a check valve and the flow may be regulated by a electromagnetic clutch on the air pump (similar to an A/C clutch).

Under hard acceleration, the air pump will be deactivated to prevent backfiring in the exhaust. To self-check, the AIR system will be activated by the PCM and fresh air would be routed into the exhaust system. The oxygen sensors would sense this fresh air as a lean condition and the short term fuel trims would begin to move in the positive direction to compensate. The PCM expects to see this happen within just a few seconds during the self test. If it does not see the short term fuel trims rise, then the PCM interprets this as a malfunction in the AIR system and a code will be recorded.

Potential causes of a P0411 code include:
- Damaged or missing check valve
- AIR pump intake port plugged/damaged
- AIR pump clutch malfunction
- Holes or damage to exhaust components

If you have access to a scan tool, with KOEO (Key on engine off) command the AIR pump on. It should activate. If it doesn't, remove and inspect the AIR pump relay for discoloration/melting due to heat. Repair as necessary.

With the ignition on (engine off) check for battery voltage at the switched battery feed to the relay and the relay control circuit. If either of these isn't present, inspect circuit for blown fuse or open/short in the wiring. Repair cause of short and retest. If they are both present, jumper the battery feed to AIR pump feed circuit using a fused jumper. The pump should activate. If not, check for power and ground present at the AIR pump when jumpered. If there is no voltage/ground present at pump repair open in wiring harness. If voltage and ground is present, but pump still does not run, suspect a bad AIR pump. If after jumpering the AIR pump feed circuit the pump activates then the problem is likely the AIR pump relay. Replace and retest.

If the scan tool activates the AIR pump, with KOER (Key on engine running) activate the AIR pump solenoid valve on and see if there is vacuum to the cutoff valve. It should have vacuum present to open the valve. If there is no vacuum present, check the AIR pump's vacuum solenoid valve for vacuum supply from the manifold. If there is vacuum present then the vacuum solenoid is likely bad. Replace it. If there is no vacuum present at the supply to the vacuum solenoid, check for a plugged or damaged vacuum line or plugged vacuum port. But if there is vacuum present at the cut-off valve, shut the engine off and using a vacuum pump, apply vacuum to the cut-off valve and see if it holds a vacuum and that air flows through it when vacuum is applied. If it doesn't hold vacuum or the valve doesn't flow when vacuum is applied, replace the cut-off valve. If the cut-off valve works properly, inspect the check valve for obstruction or to see if it's missing. Replace as necessary.

Check the steel line to the exhaust catalyst as well as the exhaust ports for damage or holes that could give a false reading.
----------------------------------------------------------------------------------------------------------------------
DTC P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak)
This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

A code p0455 most likely means one or more of the following has happened:
- A loose or improperly affixed gas cap
- A non-conforming gas cap (i.e. not factory/original brand)
- Other leak or damaged piece in EVAP system

With a p0455, the most common repair is to:
Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
Otherwise, replace the gas cap, and/or
Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary
----------------------------------------------------------------------------------------------------------------------
DTC P1414 - Secondary Air Injection System Monitor Circuit High Voltage.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

Feb 07, 2012 | 2000 Ford Mustang

1 Answer

What is the air pump for on the 1997 ford 5.8l v8 for and what will happen if it is not hooked up to anything and is bypassed on the surpentine belt?


The air pump injects air into the exhaust manifolds to reduce emissions. If bypassed, the vehicle still runs but you will fail the emissions test and the pump will freeze up if not used. I don't recommend disconnecting anything having to do with the air I breath.

Mar 21, 2011 | Ford F-250 Cars & Trucks

1 Answer

My Saturn did not pass emissions inspection -the code is p0410 what do I need to do


The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.

About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.
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Feb 04, 2011 | 2001 Saturn SC

2 Answers

What is the air pump for? Sounds like an airplane when I start the vehicle. What I disconnect the pump, what affect will that have on the car's running?


The air pump is an emission control device. It is not going to really affect the running of your car as far as performance; however, if you live in an area where they test for emissions, it could definitely cause you to flunk an emissions test.

Jun 14, 2010 | 1999 Chevrolet Blazer

1 Answer

I get code P0410 secondary air injection malfunction ,also bogs down then surges


The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.

About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.

Replace the AIR pump AND one-way check valve
Test and clean the AIR pump AND test and replace the one-way air check valve
Replace the AIR pump inlet hose
Replace the AIR pump fuse (found under the hood)

Note that this may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!

Mar 24, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Mazda rx8 fault code p0410 secondary air system we have a mazda rx8 2006 model, p0410 fualt code has come up, want should we looking to check, test and poss change?


The P0410 code refers to the (secondary air system) emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.
.
About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.

A code P0410 may mean that one or more of the following has happened:
  • Water may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump
  • Blown AIR pump fuse due to freezing up
Possible solution:
This may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!
  • Replace the AIR pump AND one-way check valve
  • Test and clean the AIR pump AND test and replace the one-way air check valve
  • Replace the AIR pump inlet hose
  • Replace the AIR pump fuse (found under the hood)
It is really only an emissions issue and won't harm your car's engine ot drivetrain. It will however mean you won't pass emission testing if you live somewhere that tests for that like I do!

Jun 03, 2009 | 2004 Mazda RX-8

1 Answer

Code po410


The P0410 code refers to the emissions system. The AIR pump puts air to the exhaust to lower emissions. It takes in outside air and pumps it through two one-way check valves into each bank of the exhaust.
.
About 90% of the time that this code is set, the one-way check valves have worn out or failed and allow water (which occurs naturally in the exhaust) back into the pump. In any cold climate, especially in climates with higher humidity, this water may be more excessive. The water partially fills the AIR pump, it can then freeze. When the PCM commands the pump on, if the pump is frozen it cannot turn, thus overloading the circuit and "popping" the fuse.

A code P0410 may mean that one or more of the following has happened:
  • Water may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump
  • Blown AIR pump fuse due to freezing up
Possible solution:
This may be covered under the emissions warranty on the vehicle. If your vehicle is out of bumper-to-bumper warranty, check if the emissions warranty is still valid!
  • Replace the AIR pump AND one-way check valve
  • Test and clean the AIR pump AND test and replace the one-way air check valve
  • Replace the AIR pump inlet hose
  • Replace the AIR pump fuse (found under the hood)

Apr 18, 2009 | 2004 Chevrolet TrailBlazer

1 Answer

82 cressida seized air pump


The pump puts fresh air into your exhaust so the emissions are lower at the tailpipe. If it is driven by it's own belt you can run the car without it. If you have to take an emissions test in the state you live in you will never pass with the AIR pump disconnected.  Be Green and go ahead and install a new one! Thanks for using FixYA.

Dec 27, 2008 | 1983 Toyota Cressida

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