P0328/P0325 code. Knock sensor information. - Page 18 - Nissan Xterra Forum
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post #171 of 175 Old 02-17-2017, 09:54 AM
smason54321
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2002 Xterra
 
The bypass mod really only requires basic low voltage electrical skills/tools like wire cutter/strippers and a soldering gun. If you can install a car stereo by following directions, you can do the bypass mod. From what I recall, identifying the wires was the most intimidating part. I suspected I had the right ones and then was certain once l I stripped the plastic loom back far enough to find those wires were isolated by their own insulated jacket. That left no doubt. From there it's simply cut the wires, leaving a few inches to the connector incase you were to ever want to return to stock, and tape them up to protect. Solder the resistor between the wires leading to ECU and either use electrical tape or shrink tubing before stuffing the connections back into the wire loom and use electrical tape over the wire loom where it was stripped back. It will look no different then stock once complete.

'02 Xterra SE/SC 4x4 5-Spd
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post #172 of 175 Old 02-17-2017, 04:53 PM
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I personally wouldnt chose the bypass but i am not sure what difference is with relocate. As far as price, i just bought a cheap ks from net and works fine. I did do plugs before ks trying to narrow down issue. Not sure I mentioned it but i just relocated ks to firewall. I tried to put it on a bolt on back of sc but continued to exp my timing retarded and read it could be caused by noise in the bearings in the sc pulley. Firewall relocation did the trick for me.
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post #173 of 175 Old 02-20-2017, 08:28 AM
smason54321
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Functionality wise, I believe that relocating to the firewall is no different than doing the bypass mod. Both options would stop the code from returning by preventing the KS from doing the job it was designed to do.

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post #174 of 175 Old 05-21-2017, 02:16 PM
Spaz Tic
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Ive gotten the same error code after the little bypass hose by distributer split it stayed on for about 3 weeks reset ecm codes every few days then stopped been about a month never came back.now driver side valve cover gasket leaks so im ripping most of that off to change gasket should i change it since its not much work to do or just not worry about it motor has 280 000 km on it how long do they last
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post #175 of 175 Old 05-30-2017, 02:15 PM
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I had a 2000 xterra and a 98 pathfinder both with the vg33de engine and both had the p0325 code discovered (I don't know how long it had been on) when they both had a distributor fail and I was clearing the codes after replacement. the p0325 and 328 on US spec federal emissions vehicles should not cause you to fail inspection except maybe in some very strict states/counties etc. as it does not trigger the service engine light to come on, it just stores the code. (I verified by looking at both these aforementioned vehicles codes a few weeks later neither had a CEL but both still had p0325 pending and confirmed or whatever the other one that's "permanent" meaning the ecu has thrown the code 3+ drive cycles. but neither had a CEL and in fact the xterra passed inspection 2 weeks later and the print out stated codes present: p0325 vehicle passed and I asked the inspection guy how I could pass with a code he said as long as its not directly emissions related (knock sensor is not) and the cel is not on during inspection the code can be there and it will pass. he even said pending emissions ones would pass as long as all the other criterion was met. I did the mod to the x to fix the issue but it did not do much if anything performance wise still got 14mpg no matter what (whereas my newer 2011 x gets 18-20 which is great for this truck!) and still felt like it needed more power (but I think we can agree that the vg33de engine was a tank and will run forever but for sure needed about 50 extra ponies and about 50 more pound feet of twist per inch to be a serious truck engine, the 4.0 in the newer ones feels excellent and has tons of power low down and in mid range which makes driving more pleasant the older generation. I just ignored that code and kept going on my pathfinder and x and neither one had any issues due to it, no poor performance (relatively, the engine is a slouch anyhow) no worse mpg pathfinder got 14-15 and 16-17 on a down hill coasting with a tailwind but consistently from tank to tank 14-15 and the x stayed around 13-15 most tanks (I think it being taller, roof rack, with same power as the pathfinder and sitting up higher and weighing close to the same if not slightly more then the 98 pathfinder did, all played into that)

FYI I am in Tarrant county texas for anyone referencing emissions or inspection policies and this was between 2008 and 2013 so things may have changed (in my area I don't believe they have for this part anyway) and may also be different in other cities, counties, states etc.



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