Q: Car normally runs great. I changed the MAP and it still shuts off at stop lights or when in drives through lights.

asked by on

I moticed on the map connector a brown wire is slighly exposed..I tried to push it back in. Also, a shade tree mechanic, did not use a terminal connector on the spark plug wire..butbit starts right up. I feels sluggish. It does have several codes, but I cant remember. Check engine light is on

My car has 172000 miles.
My car has an automatic transmission.

Hello. The first task is to retrieve the problem codes which are setting the Check Engine light. The stalling at intersections may be a dirty or malfunctioning idle air control valve, throttle body, or dirty fuel injectors. Certainly, the bad connector you mention may be adding to the problem list as well - only the Check Engine codes will shed some light on that. I would recommend having a car is stalling inspection completed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and estimate for repairs as needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Car normally runs great. I changed the MAP and it still shuts off at stop lights or when in drives through lights.

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

Q: Help

Hello, thank you for writing in. The symptoms you are having can be caused by low fuel pressure, or low airflow. The idle air control is responsible for keeping the throttle open at idle speed when the clutch is in...

Q: Why can't I find a valve cover gasket to fit my 2005 es330 lexus?

Hi there. When it comes to the gasket replacement on the valve cover to your Lexus, I recommend getting the gasket from the dealership or a parts store that sells OEM parts. Aftermarket seals and gaskets for your vehicle may...

Q: Wrench light comes on and chokes, loud grinding noise when I go slow

The two problems are not relates most likely. The grinding when hitting brakes is worn out pads and rotors. The stalling and wrench light will need to have the engine computer scanned and checked for stored codes. The codes will...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.