Rough idle and Service Engine Soon light - Nissan Xterra Forum
 
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post #1 of 8 Old 01-14-2013, 08:02 AM Thread Starter
arretX00
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Rough idle and Service Engine Soon light

I noticed a rough idle when leaving the house the other day and decided to turn around. Before i could get home my service engine soon light came on so i hit the local auto parts and had it scanned. It said knock sensor and misfire in no. 2. Is the misfire related to the knock being bad or is this a seperate issue?? Just want to make sure so i can remedy the problem asap. Thanks in advance for any help.
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post #2 of 8 Old 01-14-2013, 09:17 AM
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Don't worry about the knock sensor code, that's not why the SES light is on. The misfire code and rough idle probably has something to do with your distributor-wires-or plugs.
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post #3 of 8 Old 01-14-2013, 11:28 AM Thread Starter
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Thats kinda what i have gathered from some other posts. Im guessing that the knock code might have just been in the history and the mis fire is what kicked it. Guess i will start with plugs and wires, it hasnt had new ones so its over due. Any advice on the plug by the firewall??? And is the distributor a pain if i need to do that?? Thanks again for your help
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post #4 of 8 Old 01-14-2013, 12:27 PM
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I had this exact thing happend. I replace the cap and rotor, and replaced the plugs and wires...well, some of them. I'm still trying to figure out how the hell I'm going to reach #6...

2000 XE V6 4X4 5speed, AC shackles and UCAs, Bilstein 4600, K&N drop-in, intake mod, AC Idler brace, Yakima kayak rack, Shrockworks Skids, custom sliders, BFG AT/KO 32x11.5x15, custom rear bumper/swingout tire carrier, custom front tube bumper, Lokka'd front Diff.

5 speed
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3 Pedals
2 Diffs
1 Tcase ... The way it was meant to be.
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post #5 of 8 Old 01-14-2013, 12:55 PM
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get a stool len over ngine (lay on it and you can get to it

MY BRIGHT AZZ LIGHTS!

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post #6 of 8 Old 01-14-2013, 03:13 PM
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The distributor is easy to replace but it costs around $250. Just had to replace mine a couple days ago. Your best bet would be to just replace the distributor cap and rotor first, which will be about $30 and very easy to do.

I was just reading about that number 6 plug, I think the best way is plug socket>6" extension>universal joint>12" extension>ratchet. Once its almost fully unthreaded use an old plug wire boot to pull it out and also to put the new one in.

Wish I wouldve found all that out myself beforehand, I had to take it to a mechanic a pay a half hour labor to get the damn thing lol.
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post #7 of 8 Old 01-22-2013, 01:56 PM
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To get the one in the back get a stool lay on the plenum put the socket with a six in extension then attache the universal joint then a ten inch extension to undo. Careful not to drop it.
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post #8 of 8 Old 01-22-2013, 07:44 PM
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agree with using two extensions and a u joint. do it 2-3 times and you'll get used to it. [still a pain though].
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