P0304 p0344 what do these codes mean ? p0304 p0344 trying tofix my own car with help of friends

That code P0344 doesn't mean to replace the cam sensor . It means you do the diagnstic's for that code . Could be a wiring issue , or the computer could be bad . Your best bet ,take it to a qualified repair shop .

clearing codes wont correct the problem and limp mode is designed to protect motor and transmission - p0700 is a transmission problem
P0700 Transmission Control System Malfunction p0340 is camshaft position sensor malfunction
https://www.obd-codes.com/p0340 p0344 is also a camshaft position sensor circuit problem
P0344 Camshaft Position Sensor Circuit Intermittent your p430 is a cat converter problem
https://www.obd-codes.com/p0430 and p0888 is transmission relay problem these reasons are limp mode the knock can be fuel not burning correctly or a lower engine knock can mean you damaged a piston

p0128- coolant thermostat
p063a-
p0344-camshaft position sensor A bank 1 -circuit intermittent
p0480- engine coolant blower motor 1- circuit malfunction

The P0304 code means that the cylinder 4 is misfiring or is ... P0304 MAZDA P0304 ... Engine Light ON? The Engine-Codes.com ELM327 WiFi Car Diagnostic
OBD II Trouble Code Information and Diagnosis Engine Codes com Welcome to Engine Codes

Hi Anonymous,this is a PDF can help you Diagnostic Trouble Code Table .This page mainly help you to check the trouble code when you diagnose your car with OBDII diagnostic tools.And you can use Autel MaxiDAS DS708 Update by Internet to help you .

Hello Anonymous,maybe you can read this PDF ,it can help you,
Diagnostic Trouble Code Table .

Code 1684 means the computer has lost power since the last check, usually from disconnecting the battery.
Code 344 means the cam sensor on bank one is not always sending a signal to the computer. It could be a wiring problem or something with the actual camshaft.

Go to this site: http://www.engine-light-help.com/generic-check-engine-light-codes.html

Your 'generic' codes are there for OBD-II

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.

P0304 means that you have a misfire on cylinder #4.Pending code are secondary indicators to let the mechanic know that the problem is more or less constant even if it is a random missfire.