What does a po306. Code for a plymath grang voyager mean

Code 306 means cylinder 6 is not producing power. It could be the spark plug, the injector, or another problem.

P0720 Output Speed Sensor Circuit Malfunction

http://engine-codes.com/p0720.html :in case you would like to know in detail whats causing this

http://engine-codes.com/ :for future use in wanting to know other code meanings

This code means you have an engine misfire in cylinder number 6.

code po306 means cylinder number 6 misfire detected, possible causes air leak in the intake manifold or in the egr or pcm system, could have mechanical problem number 6 cylinder like burned or worn valves,could have clogged fuel injector or faulty fuel injector,could have bad ignition coil, bad spark plug or bad spark plug wire.

P0430 code is(catalyst efficiency below threshold on bank 2)
P0420 code is((catalyst efficiency below threshold on bank 1)
P0306 code is(cylinder 6 misfire detected)

you dont it needs to have to be fixed thats why its in limp mode and untill it is fixed there ways around this but it is against the law ........epa regulatins it wont run very well beleave me the van is worth more and will save gas and more pick up .

You can shop around, but probably in the range of $1500-$2000 installed, or for a reputable place to rebuild yours.

You can get a diagram from any auto parts place. If you have an auto zone that's the best place

Plug, plug wire, plugged or open fuel injector. are the most likely.

Here are some possible causes: PO306 means cylinder #6 only.

Possible Causes Setting Conditions

• Air leak in the intake manifold, or in the EGR or PCM system
• Base engine mechanical fault that affects only one cylinder
• Fuel delivery component fault that affects only one cylinder (i.e., a contaminated, dirty or sticking fuel injector)
• Ignition system fault (coil or plug) that affects only one cylinder