Q: I have a 1994 acura integra in great shape but when I come to a stop while in traffic my car idles weird and acts like it wants to die

asked by on March 07, 2017

My question is in top banner
My car has an automatic transmission.

What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. This valve is controlled by the vehicle’s computer and will adjust idle speed based upon other measurements such as engine temperature, intake air temperature and electrical system load or voltage. This is also an important function when starting the motor as it allows the motor to run and idle on it’s own once the motor fires. When you accelerate, the engine RPM increases, and as you let off the gas, the RPM slowly returns to the normal idling speed with the help of the idle air control valve making the transition from a higher RPM back down to idle speed while adjusting the air/fuel ratio constantly to allow this to happen smoothly. When the engine RPM drops below the normal range of about 800 RPM, this often times will cause the engine to stall indicating a dirty or faulty idle air control valve. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

engine misfire. 1995 Toyota Corolla

Hello. These types of issues can be hard to diagnose. Most of the time they are caused by a failure within the distributor itself. Also common is the shaft being slightly worn, which will cause the RPM reading to be...

Shaking

Tire/wheel imbalance is a common cause of what you are describing but the sudden onset of the issue is significant. Among the possibilities are that a wheel weight (a balance weight) has fallen off of the rim, tire impact damage...

My advanced track warning light came on after I hit a curb the other day. Now my car pushes to the left and there's a loud noise.

Hi there. The car bent the suspension and the advanced track sensor sees that the angle of the wheel is not straight. Check the suspension and see if anything is bent or broken. A bent suspension component will make the...

Related articles

Understanding the Acura Maintenance Minder Codes and Service Indicator Lights
Car symbols, or dashboard lights, are a car service reminder. The Acura Maintenance Minder codes indicate when and what service your car needs.
A Buyer's Guide to the 2012 Acura RDX
Compact Compact luxury SUVs have come a long way since the Acura RDX first showed up on the scene. However, to this day, Acura still produces one of the best vehicles in this category. The 2012 Acura RDX is a...
A Buyer’s Guide to the 2013 Acura ILX
Honda’s Honda’s luxury division has been busy making models to meet the needs and wants of a wealthier consumer base, but now Acura is back to a more affordable segment with a decent entry into the four-door marketplace. The ILX...