Error Code 300: Enigine Misfire

[mattlewis9333]

New guy here. Recently I have been having a few problems with my 2001. Most importantly, the engine has been bucking whenever I accelerate. In other words; the engine experiences brief moments of engine hesitation every few seconds while accelerating. I took it to AutoZone and I got error 300: "engine misfire" which the guy said could be the spark plugs, the wires or the fuel injectors. Should I just change the sparkplugs, fuel filter, something else?

Also, this is probably stupid, but how do you search for info on this site. I tried the little search box on the left of the home page, but it seems to just bring up 5 random threads. I'm sure that someone has already posted this question, but I don't have time to manually search through 1600 plus pages of threads.

Also, I was recently having another problem where the engine was idling high and inconsistently. I followed the advice I found on here and used MAF spray cleaner to clean the MAF Sensor and the Oxygen Sensor. Worked like a charm. Thanks.

[tom4bren]

Changing out the spark plugs would be a good start but it sounds more like it could be the fuel pressure regulator (FPR). Use the search function to find a recent thread on it.

When you use the search function, put the search text in the first field and pull down on the second & select forum. Post again if you can't find it & I'll give it a go.

Good luck.

Tom

[Mark B]

Welcome new guy. Become a site supporter.

[etlsport]

i would change out my fuel filter and fuel pressure regulator first.. dino did a great write-up on how to do it.. and there is an allen wrench modified to make the job easier floating around the forum somewhere that i sent out as a community tool, you can find out who has it and ask for it and they will send it to you free.. all you have to do is send it to the next person who needs it when you are done

as for the search.. there is another "search" tool just under the vehicross.info logo at the top of the page

[JGeorge264]

Changing the spark plugs took care of the problem when mine was doing the same thing. :bgwg:

[VehiGAZ]

But before you do those other things - first remove each coil pack and see if you have moisture down in the holes. This has happened to a few of us recently after power-washing our engine bays. Just a little bit of water/moisture will ground out the ignition pulse. If any are wet, let them dry out and reassemble.