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#680436 - 25/08/13 08:20 AM Engine codes P0302, and P0328
5769 Offline
Junior Member

Registered: 17/07/13
Posts: 5
I have a problem with trying to figure out what could be causing the service engine light soon to come on. When I first drive my X it runs fine, but when I park it and turn it off for about 15 minutes and then restart it, it runs like its missing. The light starts to blink. It misses for about a minute then runs fine but the light stays on. I took it to have the codes read and it said P0302 # 2 cylinder misfire and P0328 Knock sensor High input BK 1. I have changed the plugs,wire distributor cap and rotor cap. After the codes are cleared. Still having the same problem. Same codes appear. Could this be a injector or knock sensor problem? I know its a big job to change out the knock sensor but i can do it. Just need to know if that's the problem. HELP! PLEASE!

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#680437 - 25/08/13 02:09 PM Re: Engine codes P0302, and P0328 [Re: 5769]
RNTKnives Offline
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Registered: 26/06/09
Posts: 354
Loc: Prepping for the Zombie Apocol...
First we need a little more info on your X. Year, engine, mileage, S/C or N/A. All this can be factors.

I will say, without the rest of the info, that it does sound like an injector or possibly a fuel pressure problem. I doubt it's knock sensor for 2 reasons. 1) A knock sensor would not retard timing on startup and then clear. 2) Knock sensors don't throw SES lights, only stored codes. Try using a scanner that has "freeze frame". That will show you all the parameters when it throws the code.

Jeff!
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#680439 - 25/08/13 04:01 PM Re: Engine codes P0302, and P0328 [Re: RNTKnives]
5769 Offline
Junior Member

Registered: 17/07/13
Posts: 5
Jeff, thanks for the reply. My x is a 2002 with 118000 miles. 3.3 non supercharged. v6. I did have the codes cleared. With the ignition on and without starting the engine i checked the codes again and it came up P0328 knock sensor high input BNK1. How can that be if the engine was never started after the codes were cleared? I will try a scanner with "freeze frame". Thank you for the info. James

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#680440 - 26/08/13 04:03 PM Re: Engine codes P0302, and P0328 [Re: 5769]
e207 Offline
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Registered: 28/06/09
Posts: 549
Loc: Ashland, PA U.S.A.
at that many miles, have you had the timing belt replace yet, that should have been done at either 7 years or 105K miles. also the knock sensor code doesnt mean anything on the NON Supercharged models.


Edited by e207 (26/08/13 04:05 PM)
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Reman'd engine installed 5/16/09 at 87,894 miles

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#680444 - 27/08/13 02:50 PM Re: Engine codes P0302, and P0328 [Re: e207]
5769 Offline
Junior Member

Registered: 17/07/13
Posts: 5
Yes I changed the timing belt along with the water pump and front oil seal at 110k miles. Right after I bought the xterra. Was running fine til I ran 3 tanks of gas from Circle K in it. Then the problem started. Chevron from now on. Got good spark and fuel pressure, and compression. going to swap the fuel injector on # 2 with # 1 and see if I get the misfire on the # 1 cylinder.

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#680445 - 27/08/13 06:57 PM Re: Engine codes P0302, and P0328 [Re: 5769]
e207 Offline
Member
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Registered: 28/06/09
Posts: 549
Loc: Ashland, PA U.S.A.
well if you feel it could have been caused from a fill up at a station, then run out as much as you can, fill up elsewhere and do a full SeaFoam treatment on it.

The missfire on #2 just could have been caused by the fuel, try the seafoam treatment first, might save you some work.
_________________________
2002 SE/SC R.I.P. March 2015
Bielstien's
Shrock Sliders
Reman'd engine installed 5/16/09 at 87,894 miles

Captain 38-90
Member of Fire District-38 Station-1 since 1991.
https://www.facebook.com/groups/172465012765747/
http://www.pioneertunnel.com/home.shtml

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#680458 - 31/08/13 02:54 PM Re: Engine codes P0302, and P0328 [Re: e207]
5769 Offline
Junior Member

Registered: 17/07/13
Posts: 5
Well changed the # 2 fuel injector and is running good so far. Haven't had a misfire on that
cylinder. Time will tell. Thanks everyone for the input. I appreciate it. James


Edited by 5769 (31/08/13 02:55 PM)

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#680810 - 30/12/13 01:05 AM Re: Engine codes P0302, and P0328 [Re: 5769]
andellay Offline
Junior Member

Registered: 25/12/13
Posts: 4
Why not use Launch? It is very useful to Diagnostics
Faults

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