P0300 Diagnostic Code - Random Misfire
Symptoms.
Engine may stumble or miss
Engine may be hard to start
you may notice no issues
Cause
Failing spark plugs or spark plug wires
Bad coil or coil pack
Failing oxygen sensor(s)
Bad fuel injector or more than one
Stuck exhaust valve
Bad catalytic converter
EGR valve or valve passage clogging
Bad camshaft position sensor
Bad PCM or ECM
The Fix
Best first action is a tune up, new plugs, wires, inspect all hoses and wire connections then reset the code. If it returns you will need to narrow it down to a system, coils and coil packs should be tested, catalytic converters for function ( do you smell rotten eggs?). A misfire that jumps cylinders could indicate a lean condition, do you have any other codes along with the 300? this will help clue you in to the source, check valve function to make sure they are opening and closing fully.
This is probably pone of the most difficult codes to troubleshoot, so start with the basics and work your way into the more expensive options, in many cases a good old tune up solves the problem, back it up with a fuel system cleaning and see where you stand.
Trouble code P0300 means:Random/multiple cylinder misfire detected
Trouble code P1138 means: Swirl Control Valve Control Performance
Trouble code P0300 means: Random/multiple cylinder misfire detected
How fix code P1140
To find the ignition key code for a 1994 Nissan Sentra SE, check the owner's manual. You can also contact the manufacturer to obtain the code.
2002 NISSAN/DATSUN SENTRA 1.8L 4-cyl Engine Code QG18DECAPACITIESEngine, with Wix # 51365 Filter..........2.9 quarts2002 NISSAN/DATSUN SENTRA 2.5L 4-cyl Engine Code QR25DECAPACITIESEngine, with Wix # 51356 Filter..........4.5 quartsHope This Helps.
yes, both motors are exactly alike. 1.6L DOHC engine code: GA16DE
Trouble code P0400 means:Exhaust gas recirculation flow malfunction
Hello, On a 2005 Nissan Sentra, the PCV valve is part of the crankshaft ventilation system. It's where the smaller tubing off the inlet air duct (top right) enters the valve cover. For an illustration of its precise location, it is Part Code 11810 in the diagram listed under the "Related Links and Sources" portion of this answer. Hope this helps!
how can I find exactly ubication for put 2002 nissan frontier supercharged knock sensor?
Trouble code P0171 means System too lean (bank 1)
Trouble code P0175 means: System Too Rich (Bank 2)