Question about 2006 Toyota Tacoma

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Air pump with switching valve 2007

The Dealer said I needed a air pump, this was causing the check engine light to come on

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It could be the air pump or it could be a faulty sensor. Have those checked first. Hope this helps.

Posted on Dec 26, 2013


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Posted on Jan 02, 2017

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SOURCE: 2007 camry check engine light

there is nothing to reset, u need to have the OBD 2 electronic control module (called a PCM) tested for fault/trouble codes, whenever this light is turned on by this module then a fault has occured in the engine, emission or transmission controls, there is seldom if ever a symptom other then the light, Kragen Auto and Autozone will test this for free outside of California, have the system tested for OBD 2 trouble codes.

Posted on Nov 18, 2009

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SOURCE: 2007 tundra check engine lite on

There is a Air Injection Sensor/Switch that can be replaced without replacing the Air Pump on the 2007 Tundra 5.7L. The actual AIR Pump itself has a part number of 176100S010 and cost around $1112.84. I cannot find anymore info on the sensor/switch. Srry

Posted on Dec 22, 2009

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SOURCE: 2007 Toyota Tundra 5.7L v-8 check engine light

it will run fine the air pump is for emmisions purposes only.if you have emmisions checks were you live then your going to want to fix it or you will fail the etst

Posted on Mar 26, 2010

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1 Answer

Secondary Air Valve

the solenoids go bad all the time on those. if the pump is pumping and the valve is new, that's most likely the cause. It should be right near the valve

Dec 07, 2013 | 2008 Chevrolet Cobalt

1 Answer


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

Check engine code P0418 comes on

P0418 Secondary Air Injection System Relay 'A" Circuit Malfunction.
The DTC P0418 is detected the the AIR vacuum control solenoid circuit not operating as desired by the PCM.

An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module PCM grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.

- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation

Possible Causes:
- Air Pump inoperative.
- Air bypass solenoid circuit open or shorted.
- Faulty AIR byspass solenoid circuit

Possible Solution:
- Visually inspect AIR pump harness and connector. Repair if necessary.
- Visually inspect AIR bypass valve harness and connector. Repair if necessary.
- Replaced AIR bypass valve
- Replaced Air pump

Hope this helps (remember to rate this answer)

Dec 10, 2010 | 2003 Volkswagen Passat

2 Answers

I have a 2007 suzuki sx4 and recently had a oil the check engine light is on and I can't set the cruise control either

We have had similar problems with 2007 SX4 for 18 months - engine light on intermittently, sometimes days, sometimes weeks, cruise control disabled when light is on. Suzuki dealer has replaced O2 sensors twice, suggested catalytic converter needs replacement ($1200) but was not certain of cause or remedy. Finally dealer has removed fuel tank and fuel pump to reveal dirty fuel filter. Dealer states dirty fuel as cause which is not their problem as they cannot control fuel quality. Dealer wants $1200 to replace pump but no guarantee it won't occur again with first new tank of fuel! Could make for very expensive driving.

Oct 02, 2010 | 2008 Suzuki SX4

2 Answers

M buick stalls when I am driving it. I have to pull over, put it in park and it starts back up again. never know when it will happen. Replaced fuel pump. Dealer cant figure out what is wrong. says it...

It doesn't really need to have the computer connected, a simple OBDII scan tool while driving will suffice.

I'm am assuming that when your Buick stalls it is when you are at a stop light or at any other time that you aren't pressing the throttle.
That problem is likely caused by a faulty or dirty IAC valve. The valve is an electronic choke that allows air to the engine when the throttle body valve is closed...hence, your foot is off the gas.

Less common problems for random in gear stalling is an engine-side/bank 1 oxygen sensor fault, a vacuum leak, TPS fault or CPS fault. But those also cause a starting problem as well which is not mentioned in your query.

Sep 30, 2010 | 2007 Buick Rendezvous CXL SUV

2 Answers

Car is choking out and dying. Reads P 0411 code. How do I know if its the motor or just the solenoid valve? How can I check to narrow down what actually is causing the problem? It's on a 2000 VW jetta VR6


if (window.showTocToggle) { var tocShowText = "show"; var tocHideText = "hide"; showTocToggle(); } 16795/P0411/001041 - Secondary Air Injection System: Incorrect Flow Detected Possible Symptoms
  • Malfunction Indicator Light (MIL) ON
Possible Causes
  • Fuel Pump Relay (J17) faulty
  • Hoses/Pipes to/between Components faulty/clogged
  • Secondary Air Injection Pump (V101) faulty
  • Secondary Air Injection Pump Relay (J299) faulty
  • Secondary Air Injection Solenoid Valve (N112) faulty
Possible Solutions
  • Check Fuel Pump Relay (J17)
  • Check Hoses/Pipes to/between Components
    • Check Secondary Air Injection Hoses/Pipes for Carbonization
  • Check Secondary Air Injection Pump (V101)
  • Check Secondary Air Injection Pump Relay (J299)
  • Check Secondary Air Injection Solenoid Valve (N112)

Apr 28, 2010 | 2000 Volkswagen Jetta TDI

2 Answers


99-01 Blazers with the 4.3L motor and 00-03 2.2L motors have the Secondary Air Injection system and I've listed the codes, part #s, circuit description, and have to fix below.

DTC P0410 (SES Light On) - Secondary Air Injection
P1415 and/or P1416 for secondary air injection Bank A and B can also be set if the powertrain control module (PCM) detects a heated oxygen sensor voltage mismatch and activates an internal test to confirm.

Circuit Description:
This is located under the radiator (pump, electric solenoid, and vacuum shutoff valve) and tees off up to the exhaust manifolds thru 2 check valves on 4.3L. For 4wd remove the front skid plate to access. The secondary air injection pump is used to lower tail pipe emissions on start-up. The PCM supplies a ground to the pump relay, which energizes the pump and the electric solenoid valve. Engine vacuum is applied to the shut-off valve when the solenoid is energized. The engine vacuum opens the shut-off valve that allows air to flow to the exhaust manifolds. Often the pump gets water/moisture in it and freezes up blowing the fuse and the check valves rust or freeze open internally and then burn threw the rubber hose, and even melt the lower “T”, shutoff, and even pump impeller.

Check/Replace as required:
1. You should hear the pump on starting the Blazer and if you put your hand on it you will feel it running for about 1 minute. Part #12560095 (AC Delco 215-364) Pump, Sec Air Inj for 1999-2000 L35 (4.3L) or #12568324 (AC Delco 215-425) Pump, Sec Air Inj for 2001 L35 (4.3L) + 2000-2003 L43/LN2 (2.2L).
The GM # is on your current pump so check it because the Dealer is very confused and/or out of these and will sub other pumps. You can remove the pump and take the #25 torx screws out and see if the impeller is clogged, rusted, melted, etc before spending $100-200 for it. Impeller should spin freely.

2. Extend the air intake hose that ends halfway up the passenger side of the radiator about 2 more feet so it can run between the battery and coolant reservoir and push into the fender hole to keep dry. 99-00 is 5/8 heater hose and inline connector and 01-03 is 3/4 heater hose and inline connector –check size.

3. #12558992 (AC Delco 215-638) air injection check valves 2 required – most stores sell these for $12-20 each or Dealer $33 each. If they rattle or the hoses are burned threw replace – should only flow air into the exhaust. The easiest way is to remove the two 13mm nuts that mount the check valve pipe to the exhaust manifold and use a vise to hold them – trust me here. The little exhaust gaskets should be reusable.

4. #10217106 connect (hoses) 2 required check valves to pipes (Dealer Only $7 each). If burned threw or hard/brittle replace. Usually a good thing to plan on buying!

5. #12555165 secondary injection shutoff valve (vacuum operated in the ¾” hose in the pump outlet to the “T” pipe under the Blazer (Dealer Only $27). Only open when the pump is on and vac applied. Also replace the 5/32” vac hose from the solenoid to valve and solenoid to intake (about 4 ft of it). Once you extend the air intake listen to the hose end and you should not hear any exhaust noise after the short initial one minute pump run – if you still do the vac diaphragm is stuck open/clogged/burned so replace. Vac is applied by an electric solenoid mounted by the pump #01997264. The center vac port goes to the intake Manifold vac and the off center vac goes to the shutoff valve above. The vac should only be applied to the shutoff valve for that 1 minute as the Blazer starts then is switched off. Hose clamps will be needed here.

6. #10105352 “T” for under Blazer where pump outlet to both pipes connect – if yours melted! One end is ¾” and two are 5/8”ends - but you can use a ¾” on all ends with a little lube. Hose clamps here too.

7. The pumps 30 amps Maxi-fuse (large size) is under a little black cover between your battery tray and inside the passenger side fender. You may have to remove your battery to get to it. Depress the little cover retainer and remove, then pull the large fuse out to check/replace. There’s also a 10 amp small fuse to check for the electric solenoid that controls the secondary injection shutoff valve mounted by the air pump.

8. If you need the 2 lower hoses that connect the metal pipes to the “T” going to the pump here’s the bad news – Dealer Only and includes the pipes so over $100.

Good luck and thank you for using Fixya.

Mar 07, 2010 | 2000 Chevrolet Blazer

1 Answer

Check Engine light came on Tuesday evening. Wed morning, car didn't want to start. After numerous times, the car finally started ? Check Engine light is still on, Dealer ship said Fuel pump without even...

since the check engine light can come on for well over 100 different faults I would say the dealer is guessing, ask if he replaces the pump on this guess will he fix the real cause if the car still has a problem. I would suggest u go to Kragen or Autozone parts and have them run a free trouble code test for the cause of the check engine light. With that code in hand post it back here for us to look at and try to diagnose.

Mar 04, 2009 | 2007 Saturn ION-2 Quad Coupe

1 Answer

Emissions isue

Sounds like they want to cover all bases. When the truck is first started you should hear the pump run. If it does you don't need the pump. While the engine is running remove the hose from the check vavle, exhaust should not be coming out of the tube, if it does the check valve is bad. There is also a vacuum hose going to the check valve , make sure it is hooked up. It's not to hard to diagnose this code. Pumps are approx. $150.00 Check valves around $80.00

Nov 30, 2008 | 2005 Chevrolet TrailBlazer

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