Cyl 4 misfire
04-13-2003, 11:23 PM
#1
Cyl 4 misfire
yeah, pulled the codes from the ecu cuz engine was really runnin rough, and along with my rear o2 sensor code (which I know is bad) I got 0605? I think, well anyways it was detecting a misfire in cylander 4. I just pulled it late tonight so I havn't had a chance to inspect plugs yet, but what is the most common reason for misfire and what should I check or do to fix it. thanks.
04-14-2003, 04:55 AM
#2
Re: Cyl 4 misfire
Originally posted by blackmxma
yeah, pulled the codes from the ecu cuz engine was really runnin rough, and along with my rear o2 sensor code (which I know is bad) I got 0605? I think, well anyways it was detecting a misfire in cylander 4. I just pulled it late tonight so I havn't had a chance to inspect plugs yet, but what is the most common reason for misfire and what should I check or do to fix it. thanks.
yeah, pulled the codes from the ecu cuz engine was really runnin rough, and along with my rear o2 sensor code (which I know is bad) I got 0605? I think, well anyways it was detecting a misfire in cylander 4. I just pulled it late tonight so I havn't had a chance to inspect plugs yet, but what is the most common reason for misfire and what should I check or do to fix it. thanks.
04-14-2003, 11:45 AM
#4
Senior Member
Join Date: Mar 2001
Posts: 1,812
IF 0605 is a cyl. 4 misfire, then I suggest the following:
1) swap cyl. 4 coil pack with another cylinder...
2) see what happens.
if the code moves to the swapped coil pack, then you have a bad coil pack.
if the codes stays on the cylinder, then you probably have a bad plug.
I wouldn't worry about the EVAP code unless it happens after you've
fixed the misfire issue...I know I've had the EVAP code before, fixed
other issue, and never received EVAP again.
odds are the pack is bad...
FLO_BOY
1) swap cyl. 4 coil pack with another cylinder...
2) see what happens.
if the code moves to the swapped coil pack, then you have a bad coil pack.
if the codes stays on the cylinder, then you probably have a bad plug.
I wouldn't worry about the EVAP code unless it happens after you've
fixed the misfire issue...I know I've had the EVAP code before, fixed
other issue, and never received EVAP again.
odds are the pack is bad...
FLO_BOY
04-14-2003, 01:01 PM
#5
great thanks. a little off topic, but I started this thread dammit, I'm also getting 0902 now which is rear 02 heater or somethin and I don't even know where that is or what it does besides monitoring heat. how can I check that thing
04-14-2003, 01:20 PM
#6
Senior Member
Join Date: Mar 2001
Posts: 1,812
Originally posted by blackmxma
great thanks. a little off topic, but I started this thread dammit, I'm also getting 0902 now which is rear 02 heater or somethin and I don't even know where that is or what it does besides monitoring heat. how can I check that thing
great thanks. a little off topic, but I started this thread dammit, I'm also getting 0902 now which is rear 02 heater or somethin and I don't even know where that is or what it does besides monitoring heat. how can I check that thing
sometimes the O2 sensor CEL goes off because you went on a high-speed
run, and the O2 sensors couldn't handle all of the pollution coming
out of your exhaust.
So, I would just reset it for now, and if the CEL comes on again,
then I would look into replacing it...
FLO_BOY
Thread
Thread Starter
Forum
Replies
Last Post
jmlee44
4th Generation Maxima (1995-1999)
8
10-02-2022 02:13 PM
ballerchris510
5th Generation Maxima (2000-2003)
6
09-11-2015 05:29 PM