Skip the auto shop - Our mechanics make house calls

Q: Car takes 2-3 tries before starting

asked by on

My car has 153,000 miles and it is having trouble starting. It takes two or three times before it will start. The spark plugs, fuel pump relay, and fuel filter have been changed. After replacing those I saw that the check engine light doesn't light up at all. I feel like the previous owner should have disclosed this information when I purchased this car. I get the following codes:

  • P0343 Camshaft Position Sensor ""A"" Circuit High, Bank 1 or Single Sensor
  • P0348 Camshaft Position Sensor ""A"" Circuit High, Bank 2

Do these codes mean that I have to replace both sensors or will my car be fine with just one -- and if so, which one?"

A: A few different things can cause the vehicl...

A few different things can cause the vehicle to have camshaft sensor codes. The most common would be the failure with the camshaft sensor, timing chain damage, improper timing, or a wiring issue.

The Check Engine Light should illuminate when the key is turned, then go off after a few seconds. This is a failsafe that proves the light is able to work as designed. Other possible causes of a car having starting problems would be the ignition switch, fuel pump, starter, or battery. A qualified technician, such as one from YourMechanic, will be able to diagnose this fault and perform any repairs that are required.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Replaced plugs and battery and car still not starting.

In order to diagnose a no start a few basic quick checks will need to be done. Check for spark at the spark plugs and check for proper fuel pressure at the fuel rail. These two basic checks will direct...

Q: Why won't my van crank?

Look at your dash when you turn on the key to see if the theft light is on. If it is, then you have a problem where the theft system is not deactivating. Try to get out and lock all...

Q: Truck accelerated past 35 and started sputtering

Hello there, thank you for asking about your car. The first thing that comes to mind is a secondary ignition misfire (spark plugs, wires, etc.). An ignition misfire is most noticeable under load and can be felt as a shudder...

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...