P303 code

[jwalters]

My 2003 Ram 1500 3.7 magnum threw this code. I have replaced the spark plugs, ignition coils and fuel injectors and it is still throwing the same code, P303, wish is cylinder 3 misfire. Any help would be greatly appreciated.

 

[Wild one]

My 2003 Ram 1500 3.7 magnum threw this code. I have replaced the spark plugs, ignition coils and fuel injectors and it is still throwing the same code, P303, wish is cylinder 3 misfire. Any help would be greatly appreciated.

You might get more answers if you post this in the 3rd Gen section.

3rd Gen : 2002 - 2008

Discuss anything about your 3rd generation Dodge Ram truck here.

www.ramforum.com

 

[markabby]

just a generic reply:

What Causes P0303?

• Faulty coil.
• Faulty fuel injector.
• Faulty oxygen sensor.
• Poor compression.
• Burned exhaust valve.
• Low or no Fuel.