smog pump

Pump Type: The Air Pump, or Air Injector Reactor (AIR), system design is commonly referred to as the smog pump. The smog pump is responsible for supplying fresh, pressurized oxygen into the exhaust stream near the exhaust manifold. The spinning vanes of the air pump forcing air into the diverter valve accomplish this.

What happens when a smog pump fails?

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 much does it cost to replace a smog pump?

The average cost for air pump replacement is between $465 and $554. Labor costs are estimated between $77 and $97 while parts are priced between $388 and $457. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.

Do I need the smog pump?

The air injection smog pump pushes air into the exhaust system right after the exhaust manifold, to help intercept and burn those unburned fuels. The system is critical to help cars achieve government emissions standards. So, the law says you need a secondary air injection system.

Does smog pump affect gas mileage?

The smog pump really shouldn’t affect mileage as all it does is pump air downstream into the exhaust.

Can you drive without secondary air pump?

Technically speaking, you can drive without a secondary injection pump. However, doing so is not advised. This stems from the fact that a faulty secondary injection pump can cause a host of drivability-related issues, most of which can vary significantly in severity, on a case-by-case basis.

How do I know if my smog pump is bad?

Let us look at the signs of a bad air injection smog pump.
Check Engine Light. One of the most common symptoms of a bad secondary air system is that the Check Engine Light will come on. Failed Catalytic Converter. Failed Emissions Test. Low Idle. Sluggish Acceleration. Engine Stalls.

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.

Where is the smog pump located?

The pump lies after the exhaust manifold and before the catalytic converter of the vehicle and it can reduce carbon emissions by pumping fresh air from outside into the exhaust stream. By the time fumes leave the tailpipe, there are fewer hydrocarbon pollutants in them.

How long does it take to replace an air pump?

The replacement of the compressor is about 1.5 hours and does not include the recover or evacuate and recharge of the system.

How do I fix P0411 code?

What repairs can fix the P0411 code?
Air pump replacement.Removing carbon buildup from secondary air system.Vacuum hose replacement.Air solenoid replacement.Repairing or replacing wiring harness issues.

What causes secondary air injection malfunction?

A faulty pump is generally the most frequent cause of the system failing. Ingress of moisture can cause damage which results in seizure of the pump. Faulty ground and voltage supply can also cause the pump to fail.

What is code P0410?

Code P0410 is the result of the Engine Control Module (ECM) indicating a malfunctioning Secondary Air Injection System. This happens when the O2 sensor does not accurately detect the changes in the O2 level of the exhaust while the air injection system is functioning.

How does a smog pump diverter valve work?

During deceleration the diverter valve blocks air flow, preventing a backfire that could damage the exhaust system. When needed, the diverter valve will release excess pressure to the air cleaner.

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