What does it mean if engine lights on flashing brought to AutoZone for code and it was the code P0303. How do I fix this mean?

Question edited for clarity.
Question moved to model category.

The P0606 fault code means that there's an error with your power control module (PCM). Your PCM is the computer inside your car that monitors all the vital systems. Basically, it's the brain of your car. Every time you start the car, the PCM runs a series of checks to make sure everything is okay.

How to Fix the P0606 Fault Code - Solo Auto Electronics

What the P0303 code means. The P0303 DTC is set when the ECU detects multiple misfires from cylinder 3. Misfires cause the ECU to set the Check Engine Light and put the vehicle into a failsafe mode to prevent damage. The Check Engine Light will remain until the code is repaired.

P0303 OBD-II Trouble Code: Cylinder 3 Misfire Detected

Codes show an injector problem on cylinder 3 which is also causing a misfire. You need to have the injector and related circuit checked out soon.

change the ignition coil pack common problem p0303 means cylinder 3 misfire and the coil pack are know to go out on these particular models

A check engine light means the computer detected faults in the system. Flashing light usually means exhaust system damage. The only way to reset light is with a code reader

Nobody can answer correctly until you (or let someone) read OBD code.

"Check Engine Light flashing" means there is (or are) potential error on system.
(Flashing = Potential. maybe temporally, stays on = permanent. need to fix)
there are 100s of error codes.

When you go Autozone or some autoparts store maybe AAA, they can connect "OBD code reader" and read error code for you for free.
You can buy cheap code reader under $30 for now and future use.

Code may show like P0301, it means misfire on #1 cylinder for example.
sometimes just gas cap not tight closed show error code.
Reading OBD error code is starting point .

The code means a misfire on #3 cylinder .i would change the spark pluges wires if it has any.may also be a bad coil or coil pack.

p0171 = fuel system too lean, this means vacuum leak or faulty oxygen sensor

p0303 = cylinder 3 misfire

p0325 = knock sensor malfunction.

p0303 and p0325 - i can see these working together, if a cylinder misfires, it will cause the knock sensor to trip. I would lean towards the coil and or ignition module, along with a faulty oxygen sensor.

p0303 is a mutible engine misfire on number 3 cylinder. the best fix,

A code P0303 may mean that one or more of the following has happened:

• Faulty spark plug or wire
• Faulty coil (pack)
• Faulty oxygen sensor(s)
• Faulty fuel injector
• Burned exhaust valve
• Faulty catalytic converter(s)
• Running out of fuel
• Poor compression
• but first of all check the wires and sparkplugs first!

P0171 is LEAN and P0303 is misfire number 3 cyl. Its time to stop guessing and pay for a correct diagnosis. Find a shop that works on VW and has the tools to work on it. DO NOT put those Bosch Platinum Spark plugs in that Ottozone tries to sell everybody.

P0303 Cylinder 3 Misfire Detected