Question about 1999 Honda Civic
P0300 indicates that there is multiple miss fire in the ignition system. P0303 and p0304 indicates the miss fire is in cylinder #3 and #4. Replace the spark plug, and wire set, and rotor and cap if there is one. Can not remember if there are coil packs on the civic, the age thing. change the fuel filter and clean out the fuel injectors with fuel injector cleaner for the next 3 full ups. When the spark plugs are removed, inspect them for condition, if there clean or dirty with carbon build up. which would indicate how the engine is running. Keep me posted and drive safe.
Posted on Jun 04, 2009
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
May 23, 2015 | 1998 Honda Civic EX
May 23, 2015 | Cars & Trucks
Jan 06, 2014 | 1999 Honda Civic
May 15, 2011 | 2003 Honda Civic
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...
Jan 04, 2011 | 2001 Honda CR-V
Sep 24, 2010 | 2003 Volkswagen Passat
Mar 10, 2010 | 1998 Honda Civic
Feb 14, 2009 | 1999 Honda Civic
Mar 21, 2017 | 1999 Honda Civic
743 people viewed this question
Usually answered in minutes!