Q: Stalling upon startup when cold, error code P0102

asked by on

Hi. My car has startup issues only when the temperatures are low. It would stall as soon as I start it up. When it happens, I have to keep the foot on the gas pedal and rev it for a couple of minutes so that it would not turn off. Low air flow was detected along with the crank sensor issue that doesn't show signal during scanning. There is an error code P0102. What should I do? Thanks.

The P0102 code indicates a fault with the mass airflow sensor system. The mass air flow or MAF is a sensor that is used to monitor the air coming into the engine. Many of these include an intake air temperature sensor. The crank position sensor is used by the ECU to help calibrate engine timing and is used to advance the timing when the vehicle is cold. This combination of faults will easily cause the symptoms you have described. A qualified technician, such as one from YourMechanic, will have little trouble diagnosing your stalling issue and performing any repairs that are required.

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. Stalling upon startup when cold, error code P0102

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: When I accelerate quickly the Check Engine Light comes on.

This may be related to many different things, such as a failing throttle position sensor or a bad mass air flow sensor. The throttle position sensor relays the position of the throttle plate relative to your foot's position on the...

Q: Car shuts down when gas is pushed

Situations like the one you are experiencing are tough to diagnose with limited information because of all the variables involved. Things like low fuel pressure, or a large vacuum leak could cause a concern similar to what you are describing....

Q: Where is the map sensor located c

The MAP (Manifold Absolute Pressure) sensor should be located just in front of the throttle position sensor toward the back of the left side of the engine (assuming you are standing in front of it facing it). If you have...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...