Q: Check Engine Light

asked by on

After changing the cranshaft position sensor by the auto shop, the check engine light is back on again. There are 7 codes which are P0300 to P0306. I wonder if it was related. How will it be fixed?

My car has 96000 miles.
My car has an automatic transmission.

Hi there. You might want to read this article that explains what causes the P0300 OBD-II error codes. If more than one cylinder misfires, this will increase or decrease the revolutions per minute (RPM) of the crankshaft. If that increase and/or decrease is more than 2 percent, the Powertrain Control Module will store the P0300 trouble code. You might want to have a professional mobile mechanic come to your location and complete an engine is misfiring inspection to diagnose what is causing your problem.

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
  1. Home
  2. Questions
  3. Check Engine Light

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: Car does not start

Depending on whether or not the vehicle will turn over will determine what the next step should be. If the engine does not turn over, I would recommend checking all connections related to the battery and check to be sure...

Q: Nissan Altima rumble

The rumbling is caused by an imbalance problem with one of your axles or one or more of the tires. Even though you had the tires balanced, that does not mean your tires do not have a balance issue at...

Q: When I turn my car slightly to the left, I hear a humming noise almost like a rubbing noise. The steering wheel doesnt vibrate

The noise could be from the wheel bearing rubbing as it may have dry grease inside the bearing. The noise also could be the power steering pump as there is a load applied to the pump more than steering the...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...