Q: Q: Car running lean

asked by on

My car is running lean.

Hello! There are a few common things that can cause a vehicle to run lean. Most common would be a vacuum leak or oxygen sensor issue. A qualified technician, such as one from YourMechanic, can perform an inspection in order to pinpoint the issues that may be present.

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
  1. Home
  2. Questions
  3. Q: Car running lean

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: Q: Why is my VSC light on?

This is related to your vehicle's traction control. VSC stands for Vehicle Stability Control. Your car is equipped with wheel speed sensors on each of the four wheels that monitor wheel speed while relaying this information constantly to the traction...

Q: Q: Possible blown head gasket

The engine overheating erratically is the first thing that comes to mind. Other problems like hoses, radiator or heater core bursting or leaking all of a sudden. The extra pressure from combustion pressure entering the cooling system causes this. Continuous...

Q: How do I install the top tether for a forward-facing car seat?

If your child’s forward facing car seat has a top tether, it can offer additional security and safety. Installing it is pretty simple, too. Here’s how: Make sure the car seat is correctly positioned in the seat. Raise and...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...