Q: 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?
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: 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: My car starts to misfire really rough after running it for about 30-60 minutes, shutting it off then starting it up

You have taken some great steps to try and resolve these issues. Looking to the spark system was a good choice. Plugs were a good start, but the distributor and wires may be causing the plugs to not receive the...

Q: Oil leaking from oil pan gasket

The oil pan gasket is made from a rubber compound and if the pan is over tightened the rubber is pushed out and will cause the pan to leak. The system needs to be checked to make sure there are...

Q: idler pulley

I think you mean the a/c compressor is seized and not the condenser. You will need to get an a/c compressor bypass kit and the compressor can then be removed and a pulley in its place. The problem is these...

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...
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...