jdavidsmi wrote:
I have spent the last 4 hours going over everything, all the vacuum lines checked out, re-cleaned the MAS, checked wiring cleaned the grounds, etc. the motor starts and runs but is still rough no service engine light. i have two 02 sensors and I'm not getting a reading on B2, with my code reader software. by the way this model is OBD1 not OBD2 complicate. still getting a P0300 that comes and goes.
Are you sure??? I'm not there to look at your engine but OBDI codes went out in American vehicles in the late 1990's. Are you sure that you are reading the right OBDII codes for your 2004 engine?
There are spark plug removal issues with your engine so check online before you try replacing any spark plugs for the proper procedure.