Nissan Armada P0507: Idle Air Control – RPM Higher than Expected

P0507 It is quite common OBDII trouble code. This code is usually triggered when engine idle speed exceeds 200 rpm. The generic code means it is the same as the other codes. Nissan Armada Like any other vehicle.

P0507 Symptoms

Although P0507 may not be obvious to others OBDII code trouble codes, it will usually be visible when you drive. These are some of the symptoms that the Armada can cause:

• The Service Engine is Soon to Be Lighted– The reason why you are here.
• Accelerate Idle Speed– Assuming that the code has been thrown due to a legitimate issue, you should notice the engine running faster when not pushing the gas.
• Thud Going Into Drive– Transmissions really don’t like to shift from park to drive at an RPM higher than idle. You may feel your whole car shake when you shift into gear using P0507.
• Vehicles take off quicker– With the engine idling higher, people report feeling the vehicle take off when releasing the brake pedal. It can increase the risk of driving.

Nissan Armada 0507 Causes and Diagnosis

Many possible causes of P0507 exist. While the code specifically mentions the “Idle Air Control System”, it would be a mistake to just go ahead and replace it without a little due diligence. The code is not always caused by the idle air control valve.

These are the top causes of P0507 problems in Nissan Armada. We also have a waist guide to help you troubleshoot. There are many model year differences. You might start with looking at a Vacuum leak You can then move on from there.

Vacuum Leak

Leaking vacuum systems can cause Armada's idle time to be higher. The vacuum system can leak, allowing extra air to get into the combustion chamber. The extra air allows for slightly more combustion and increases RPM. It also throws the code.

How to find a vehicle vaccum leak (Popular Mechanics, Article)
Find a Vacuum leak in under a minute (2CarPros, YouTube)

Bad things can cause a vacuum leak vacuum hoseThe Intake is endless, EGR SystemYou can find it anywhere that air is flowing. It’s not hard to find a vacuum leak though. Use the resources above and you’ll find it in no time.

Valve to control the idle airflow

Modern fuel-injected engines come standard with an electronic ignition system. idle air control valve. They are not all the same. If you have determined that you don’t have a vacuum leak, the IAC is a great second place to troubleshoot P0507.

How to diagnose an IAC valve (Autozone Guides)

Throttle body

The throttle body can be opened and closed millions of times during the lifetime of a car's engine. The accumulation of dust and air can slow down the body's ability to withstand high levels of pressure. It can alter the characteristics of your vehicle's idle. When dirty, you’ll often feel the vehicle almost stall before the computer compensates and opens it a little more.

Alternativly, the code could be thrown if it is not functioning properly due to damage to the throttle body.

How to spot signs that your throttle body is going down (Repair Pal)
How to tell if your throttle is bad or dirty (YouTube auto repair, Youtube).

Conclusion

This is an extremely serious problem. Due to the unsafe nature of driving with an engine that is revving higher than it’s supposed to, we recommend having your Armada serviced as soon as possible. We wish you all the best!