Re: P0300 Random Multiple misfire Post by VStar650CL » Mon Nov 01, 2021 9:41 am If one coil was bad for sure, then the first thing you should do is a voltage-drop test on your block ground and the individual coil grounds. Bad grounding heats up the N-channel transistors inside COP coils and causes "warts" and eventual failures.
P0300 random cylinder misfire code with no symptoms? Post by Brian35XR » Thu Nov 21, 2024 2:31 pm Anyone ever deal with a P0300 code that keeps popping up after being cleared? The code is for "Random/multiple Cylinder Misfire Detected".
Cam shaft timing issue code P0014, P0300 Post by Pimperish1 » Sun Apr 30, 2017 7:47 pm So this happened, kinda detailed cause I did a search and these codes don't appear in the forum. Started the car and noticed the exhaust tone was lower than usual and the idle was rough. Got on the highway and while it still sounded rough it seemed to drive ...
Re: QX56 P0300 multiple misfire… God Help me… Post by VStar650CL » Mon May 30, 2022 3:38 pm Your ride has push-pull injectors, so pretty much the only way a cylinder can flood with fuel is a mechanically stuck injector or a lack of ignition. "Rich" would just make it crappy and sooty but not wet. So that actually eliminates a lot of stuff.
However, the code P0300 displays as "random/multiple cylinder misfire detected" which means its more than one. The symptoms are just like I've experienced on outboard motors when I've had a coil go bad--intermittant misfire and then within a few days it gets worse to where it totally fails.
Re: Lean Bank2 SHRTFT 25% and P0300 random misfire at idle Post by frankdrogotto » Sun Feb 13, 2022 4:24 pm Eurica - A bad harness connector causing the Bank 2 Air/Fuel sensor to give illogical readings. This has been the culprit all along, I think, causing erratic O2 readings in Bank 2 and triggering pending P0300 and P0174 lean condition.
Re: P0300 multiple cyclinder misfire. Please help Post by Rohanmax14 » Tue May 18, 2010 9:48 am loystock wrote: P0300 is for multiple cylinder misfire and is likely due to usage of non-OEM plugs. Non NGK plugs can be problematic at times with Nissan/Infiniti engines. So instead of replacing the coils (expensive), change the spark plugs first.
P0300- diagnostic code indicates a random or multiple misfire. Post by hummer3t » Sun Apr 10, 2022 4:39 pm 2013 QX56 with 145000 miles. Plugs were changed several months ago, and vehicle has been running excellent, up until last week when vehicle ran rough all of a sudden. Check engine light came on and went to local auto parts and code p0300 ...
Re: P0014 and P0300 Post by Jumpin4a2ndgen » Mon Jul 29, 2019 9:52 am Have been researching and read variable timing solenoid has been fixing peoples issues. Anyone have any diagrams on where this is located on the rogue? Ive seen the maxima and seems like a lot of part removal.
