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View Full Version : CEL code p0301 Cylinder 1 Misfire...


BorkedWRX
09-26-2007, 07:16 PM
So I got a CEL the other day (has since disappeared, fiance says it happened once before). Went to Autozone and they pulled a P0301 which their database says is a Misfire on cylinder 1.

Ok, I know I need to check spark plugs etc. for an intermittent connection, but my problem is... lol which cylinder is #1?

might sound like a n00b question, but I never realized I don't know what order the cylinders are...

TIA!!!

-jacob

EDIT:oh i forgot... it's a 2002 WRX MT

martinus
09-26-2007, 07:36 PM
So I got a CEL the other day (has since disappeared, fiance says it happened once before). Went to Autozone and they pulled a P0301 which their database says is a Misfire on cylinder 1.

Ok, I know I need to check spark plugs etc. for an intermittent connection, but my problem is... lol which cylinder is #1?

might sound like a n00b question, but I never realized I don't know what order the cylinders are...

TIA!!!

-jacob

EDIT:oh i forgot... it's a 2002 WRX MT

Isn't cyl 1 the one closest to the belts ?

I wouldnt wory about the code, unless it comes back ... repeatedly.

Then the fun starts ( more diag. tests. ) ... not really.

I'm willing to put money on, that its NOT a spark plug wire issue. :D

RoadRunner
09-26-2007, 07:39 PM
If you're looking at the engine from the top and in front of it, I believe it goes:
1- front left
2- front right
3- rear left
4- rear right

But I'm not 100% on this, so wait till someone else confirms it.

BorkedWRX
09-26-2007, 07:39 PM
I think I might have found the cause through a little research on Iclub.

I recently installed a new flywheel/clutch and apparently the lightened flywheel can cause a misfire CEL (P0301-0304).

Though I still want to check the spark plug and coilpack so I still would like to know which cylinder is numero 1

BorkedWRX
09-26-2007, 07:42 PM
I think I might have found the cause through a little research on Iclub.

I recently installed a new flywheel/clutch and apparently the lightened flywheel can cause a misfire CEL (P0301-0304).

Though I still want to check the spark plug and coilpack so I still would like to know which cylinder is numero 1

seems you guys posted the same time I did... Thanks for the info, though as blue_93 suggested I'll wait for someonelse to chime in to confirm...

:waving:

BorkedWRX
10-04-2007, 05:30 PM
after driving the car to Utah, I am fairly sure it is the flywheel causing a false misfire code, as I couldn't hear/feel any misfire for 800 miles.