The average cost for a Toyota Tacoma air injection system check valve replacement is between $847 and $879. Labor costs are estimated between $123 and $155 while parts are priced at $724.
How do you fix a secondary air injection system malfunction?
- Replacing the air injection pump and power relay.
- Replacing O2 sensors that respond too slow as they age.
- Replacing the air injection pump intake filter clogged with debris.
Is secondary air injection necessary?
The system is critical to help cars achieve government emissions standards. So, the law says you need a secondary air injection system. Which begs the question: Does a car need a secondary air injection system to run? Strictly speaking, no, it doesn’t.
What causes secondary air injection malfunction?
CAUSES OF A FAILURE: CAUSE OF FAILURE
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Faulty ground and voltage supply can also cause the pump to fail. Blocked or leaking lines can also cause the failure or malfunction of the control or combination valve, resulting in the failure of the secondary air system.
Can you drive with a broken secondary air pump?
You can run the engine w/o the SAI pump, but you’ll throw a DTC and the CEL will light up until you correct the problem. BTW, if you find water in the exit hose (which causes the pump to fail), you’ll also need to replace the diverter (or combi) valve.
Where is secondary air injection valve?
Secondary air valves are an integral part of the secondary air system. They are fitted between the secondary air pump (1) and exhaust manifold. They prevent pressure peaks in the exhaust flow from damaging the secondary air system and exhaust gas or condensate from entering the secondary air pump.
Can I drive with a P0410 code?
You may drive your vehicle with a P0410 however keep in mind your vehicle will not pass a smog inspection. Problems with the air injection system will not cause any driveability symptoms. The check engine light or malfunction indicator lamp will be illuminated as long as a P0410 is recorded in the ECC.
Can a secondary air pump cause a misfire?
Can a Secondary Air Pump Cause a Misfire? Yes, a misfire is a common sign of a faulty secondary air system. If the pump isn’t working properly, there will be too much fuel and not enough oxygen in your vehicle, which often results in a misfire.
Can I drive my car with a P0410 code?
Issue Severity: LOW – Continued driving for a short period of time is okay. Repair Urgency: Get this code fixed within the next month. Diagnosis: This trouble code will not prevent your vehicle from running. The most common result is increased emission from your vehicle.
What happens when secondary air pump fails?
If your secondary air injection pump has failed, you may notice that the catalytic converter is not working as well as it should. This problem can lead to a loss in power and performance from your engine. The catalytic converter is the engine’s first line of defense against harmful emissions.
How do I know if my smog pump is bad?
One of the first symptoms of a bad or failing smog pump is a rough running engine. When a smog pump fails the finely tuned air-fuel ratios can be upset, and it will negatively affect the performance of the engine. The engine may have trouble idling, and may drop in engine speed, or stall when the pedal is pressed.
How do you clean a secondary air injection system?
The basic procedure is to put solvent and compressed air into the SAI system on the top of the engine and clean the ports from the bottom until air runs freely through the passages. The supplies you will need two bottle of carburetor cleaner.
What does secondary air injection system incorrect flow mean?
P0411 indicates that the ECU has detected the flow from the secondary air injection system to be out-of-specification. This causes the Check Engine Light to be set and displayed on the dashboard. The light will remain on until normal operation occurs or repairs are performed.
Where does a secondary air injection system deliver its air supply when the engine is at operating temperature?
The secondary air pump must draw in ambient air and inject it into the exhaust gas manifold downstream of the exhaust valves.
What is Toyota secondary air injection system?
Secondary air injection (commonly known as air injection) is a vehicle emissions control strategy introduced in 1966, wherein fresh air is injected into the exhaust stream to allow for a fuller secondary combustion of exhaust gases.
What is the purpose of secondary air pump?
The secondary-air pump draws in ambient air and injects it into the exhaust manifold downstream of the exhaust valves. There is a separate integrated air filter if the air is not drawn in from the intake system but rather directly from the engine compartment.
How do I know if my secondary air pump is working?
The secondary air pump has to start audibly after a cold start of the engine. Start vehicle engine. If the power supply of the secondary air pump is fine, but the secondary air pump runs with a scraping, whistling or scratching noise or not at all, the secondary air pump is to be replaced.
How do you test an air injection check valve?
How do I fix code P2430?
- Changing the secondary air injection pump.
- The defective one-way check valve needs replacement.
- Changing the air pressure sensor.
- The air control solenoid valve has to be fixed.
- Cleaning the corrosion from the connectors.
How do I fix code P0491?
- Replacing any damaged wiring, connectors, or other electrical components.
- Replacing the secondary air injection pump.
- Replacing the pump’s one-way check valve.
- Repairing or replacing any damaged vacuum hoses or fittings which could be causing a vacuum leak.
- Replacing pump fuses.
What is P1416 code?
Answer: P1416 indicates a fault with your Yukon’s Secondary Air Injection (AIR) system on Bank 2 (engine side on which cylinder 2 is located) of the engine.
What is air on OBD?
When vehicles are equipped, the secondary AIR system monitor allows the PCM to ensure that extra air is being delivered to the exhaust system during cold engine operating conditions. This extra air helps heat the catalytic converter quickly when the engine is first started.
How do you test a secondary air pump?
Perform an acoustic check.
The sound of a working electric pump will be quite audible when the engine is cold and at idle. When you switch off the engine, you will clearly hear how the pump stops. If the secondary air injection pump sounds normal in the acoustic test, go on and perform a few more checks.
What does an air pump check valve do?
The air pump check valve is the valve that allows air supplied from the air pump to be pumped into the exhaust stream to reduce hydrocarbon and carbon monoxide tailpipe emissions.
How do you test a smog pump?
You just take the outlet hose off the rail and check if it is pumping air. If the pump is off the truck, you just spin the pulley and see if air comes out the outlet.
