Causes of p0300, p0302, p0304, p0306 in 2000 toyota avalon

P0300: Random Cylinder Misfire Condition
http://www.autocodes.com/p0300_toyota.html

P0301: Cylinder 1 Misfire Detected
http://www.autocodes.com/p0301_toyota.html

P0304: Cylinder 4 Misfire Detected
http://www.autocodes.com/p0304_volkswagen.html

Why don't you start by telling me what the problem is that you have. Coolant temperature sensors very, very seldom fail.

P0300-p0304 misfire on cylinder 1-4
P1399 random cylinder misfire

miss fire check coils or plugs

coil

Is the rattling sound coming from the exhaust? I'm wondering if perhaps you have a loose catalytic converter. P0300 (multiple cylinder misfires) and P0306 (cylinder #6 misfire detected) are probably the cause as to why the car is sluggish, shakes, runs rough and lacks power. Make sure to take a close look at your ignition system (spark plugs, ignition wires, coils...). A spray bottle filled with soapy water can help you find voltage leaks on the wires and coils. Just spray the wires and coils and look for arcing. Replace any component that arcs. Other causes can be fuel injectors, vacuum leaks...).

You have random misfire codes as well as misfires detected on cylinders #2 and #4. P0011 is likely the root cause of the misfire being detected
P0011 VOLKSWAGEN - 'A' Camshaft Position Timing Over-Advanced Or System Performance problems.

Possible causes- Dirty engine oil
- Low engine oil level
- Camshaft actuator circuit open or shorted
- Camshaft actuator circuit poor electrical connection
- Faulty camshaft actuator

There may be a factory bulletin on this code, check with the VW dealer on that. Possible defective Camshaft actuator.

a blinking check engine light usually indicates a misfire. It could be a bad plug, a bad coil, a bad wire, or a condition known as carbon tracking.

Pull the codes first. This will narrow down what cylinders are being affected. I'm betting you have one of these codes P0300, p0301, p0302, p0303, or p0304. The last number of the last four i listed are the specic cylinder that a misfire is on.

Let me know what you have for codes.

Let me know if you have any questions. Thank you for using FixYa.com!

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P0301 Cylinder No. 1 Misfire Detected
P0302 Cylinder No. 2 Misfire Detected
P0303 Cylinder No. 3 Misfire Detected
P0304 Cylinder No. 4 Misfire Detected
P0305 Cylinder No. 5 Misfire Detected
P0306 Cylinder No. 6 Misfire Detected
P1346 Variable Valve Timing (VVT) Circuit Range/Performance Fault
P1349 Variable Valve Timing (VVT) System Malfunction
P0330 Knock Sensor
P0446 EVAP Vent Control Fault
P0430 Catalyst System

Stop driving immediately.....

You defiantly skipped on your timing........