2003 saturn vue 3.0 codes p0301,p0302,p0303,p0304 the engine is missing on and off not consiste worst when it hot fuel presure 58 psi

These numbers are OBD codes. They are misfire coding.
There is a youtube video to assist with troubleshooting.
Trouble shooting misfire Code P0300 P0301 P0302 P0303 P0304 P0305 P0306...

Good luck.
Semper Fi,
Z

Answered in another location. This is a misfire code for #2.
Here is a video to assist in trouble shooting.
Trouble shooting misfire Code P0300 P0301 P0302 P0303 P0304 P0305 P0306...
Semper Fi,
Z

Here's a link to your code problem,P0300 is their's a misfire and every number after 300,like 301 means cylinder one,which this is for both of your codes,go down the list and see if it's your problem.These codes have many faults,have to trouble shoot to fix. P0301 OBD II Trouble Code Here's the P0303 code. P0303 OBD II Trouble Code

Replace the coil pack.

check the coil if coil is ok spark plug if there are ok may damage in emission valve or injectors code relate it to the problems are p0300 p0301 p0302 p0303 p0304 p0305 p0306 p0307 p0308

First you need to retrieve codes from the Engine control module. You can buy a cheap code retriever at harbor freight and get the codes. After you get the codes, if it is P0301 it means cyl #1, P0302 = cyl #2, P0303=cyl 3 and P0304= cyl 4. For ex: if you got P0301 you should remove the ignition coil #1(near the front of the engine, where the pulley is) and change its position with the coil # 2. Also remove the spark plug #1 and change the position with the spark plug #4. Clear the codes and start and run the engine until the check engine light goes on. Check for codes and see if the code change for a different code. If it change the position observe which one is the change. If is P0304 you have a bad spark plug, If it is P0302 you have a bad coil. If it repeat P0301, you have either a low compression, bad injector/connector, bad intake gasket them you should continue your diagnostic. I hope this help you.
Junior.

Change...distributor cap ..spark plug wires or spark plugs

Have you had somebody clear the codes after you installed the parts.If not the codes have to be erased by using a scan tool.

From www.hondasuv.com:

 

The P1399 random misfire along with one or more of these codes: P0301, P0302, P0303, P0304 -- indicates a problem with the valves. The B20 engines in the 1997-2001 CR-Vs are known to have problems with valves tightening and then 'burning'.

So the first question is when was the last time you adjusted the valves? If you don't know or never have, then have them adjusted. Soon...

light flashes when comp. picks up a skip pull code and it will be po300 random miss p0301 p0302 p0303 p0304 all are for that # cyl that has the miss best bet change wires and plugs check for oil on wire to plug end in spark plug hole leaking valve cover gasket or spark plug tubes...