Skip the auto shop - Our mechanics make house calls

Q: Car jerking with flashing check engine light.

asked by on

2006 vs passat 2.0t. Jerking up hills, starting off and when idling. Check engine light flashes and stays illuminated. Codes are p000a and p0304. What could be the issue?

My car has 144000 miles.
My car has an automatic transmission.

If your Check Engine Light is flashing, you need to stop driving it until it is fixed. A flashing Check Engine Light is warning you that there is a fire danger because there is to much raw fuel entering the catalytic converter. Catalytic converters can get so hot they will catch on fire.

When this is occurring, you have a misfire that needs to be repaired. The P0304 code indicates cylinder number four is the culprit. The P000a code is a camshaft adjustment valve. Either of these could be the main source of your problem. These items are advanced systems and I highly recommend you book an appointment with us to figure this out for you. One of our mobile experts can come to your home to diagnose the misfire firsthand and make the necessary repairs to your car.

I have seen several cars burn to the ground when the owners did not heed the flashing Check Engine Light. Get this taken car of before you drive your car anymore.

Good luck!

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Heavy shaking that stops at high speeds

Considering the mileage on your car, there could be some worn out pieces in the front and rear suspension. The links that attach the wheels to the body of the car have rubber pivot points that eventually lose their elasticity...

Q: 2012 Passat with a small water leak on the floor of the passenger side (back seat).

Hello, thank you for writing in. The best way to figure out where the leak is coming from is to replicate it. Due to the wet conditions in your area, the water may be coming in through a window seal...

Q: crankshaft position error code p0336

This code is related to the crank position sensor. Since you just had it replaced, it may be possible that the mechanic forgot to clear the code in the car's computer. I would suggest taking it back to them to...

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...
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.