Q: rough idle and misfiring at stops

asked by on

Its been throwing codes: P0600, P0303, and P0010. I know what the codes are and replaced the following: Maf senser, camshaft adjuster, spark plugs, most of the vacuum lines,fuel pump and filter ,and cleaned the throttle body but nothing has changed.

My car has 207000 miles.
My car has an automatic transmission.

Lets start with what the codes mean. P0060 - indicates that there is a network failure to the ECU. One or more control modules are not communicating. This is usually caused by a bad ECU, poor electrical connections from corrosion etc, or sometimes a weak battery.

P0303 - Indicates a misfire in cylinder number 3. This can be caused by faulty ignition components, sticking fuel injector, or even a blown head gasket.

P0010 - Indicates that the intake camshaft position sensor control circuit is faulty. This can be caused by a bad ECU, low engine oil level, incorrect viscosity rating of the engine oil, faulty intake camshaft position actuator solenoid, intake camshaft position actuator solenoid harness opens or shorts and intake camshaft position actuator solenoid circuit, poor electrical connections.

Testing will need to be performed to determine if the number 3 cylinder misfire is due to fuel or spark. Electrical testing can determine what module is at fault and/or what connectors are not making good contact.

Finally, a combination of electrical test and oil pressure testing can help determine the exact cause of the cam position solenoid code. I suggest having a certified technician, like one from YourMechanic, perform the required test to diagnose your Check Engine Light, so you don’t buy parts you don’t need.

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

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!
  1. Home
  2. Questions
  3. rough idle and misfiring at stops

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: Air suspension not pumping up

Hi, other S430 owners have reported similar issues with their suspension systems. From your description, it appears the pump is in working order, just the one corner is lower than the rest. This could be caused by a leak somewhere...

Q: My car is misfiring and shutting off after driving a short distance

From the description you have provided, there could be any number of things that caused this failure. The engine should be steady with compression in all cylinders while turning over/cranking. If the engine cranking is not uniform, this could mean...

Q: Q: Car won't pass smog.

The path to pass emissions will depend on what part of the emissions test (carbon monoxide (CO), oxides of nitrogen (NOx) or hydrocarbon (HC) levels) were out of tolerance. There are different components, and tuning/repair activities required to address each....

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.