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P1320 Error in 2000-2001 Nissan Maxima: Ignition Coil Failure & Fix Guide

Model: Nissan Maxima Fault Code: P1320 Posted: 2006-08-29 12:47

After replacing the starter on a 2000 Nissan Maxima, I began receiving a P1320 diagnostic trouble code (DTC), which relates to an ignition signal primary fault. The check engine light activated, and although I cleared the code, it returned shortly after. I initially suspected a defective starter or poor labor during installation. Further research revealed that the P1320 error is commonly associated with faulty ignition coils in 2000-2001 Nissan Maxima models. A user on Maxima.org reported that replacing all six ignition coils resolved the issue, and the vehicle's performance improved significantly. The car previously exhibited a noticeable 'shaking' sensation when the AC was on—this was later identified as misfiring cylinders, which aligns with ignition coil failure. I replaced three of the six coils initially and noticed improvement. After installing all remaining coils, I drove approximately 15 miles without any issues. The P1320 code has not reappeared, and the vehicle runs smoothly. I also found that OEM ignition coils are available at auto parts stores for under $70 each—significantly cheaper than dealership pricing. I recommend checking for recalls related to this issue using your VIN number with a Nissan dealer or official recall database. Additionally, if aftermarket coils are used, some vehicles may not recognize them due to heat rating limitations; OEM parts are typically required for full compatibility. For owners experiencing recurring P1320 errors, replacing all ignition coils is often the most effective solution. This fix is cost-effective and avoids expensive dealership labor fees.

Related fault codes
P1320
Comments (19)
Anonymous 2006-08-29 13:11

Are you certain the P1320 code refers to an ignition signal primary issue? Confirming this helps ensure accurate diagnosis.

Anonymous 2006-09-16 08:16

I'm not sure what the P1320 PD (pending) means. I've only replaced three of six spark plugs so far—front bank coils are difficult to access. Now I have both P1320 and P1320 PD. Any insight on the pending code? Help would be appreciated.

Anonymous 2006-09-16 10:32

The second code (P1320 PD) is simply a pending version of the same error—it will become active in future trips but won't be logged as a duplicate. I strongly recommend getting a professional diagnostic evaluation before spending money on spark plugs, which may not be necessary. Good luck and stay posted—Jeff.

Anonymous 2006-09-16 15:05

Thanks Jeff. I already have spare spark plugs. If I can complete the replacement without major difficulty, I’ll do it. Otherwise, I'll take it to a mechanic and update here. Cheers—Dyrk

Anonymous 2006-09-19 08:47

My Actron DTC lookup lists P1320 as 'Ignition Signal Primary.' If the code appeared after the starter replacement, inspect the wiring and connections from the starter solenoid. Damage or poor contact during installation could be the root cause.

Anonymous 2006-09-19 10:07

Could this issue be related to the starter replacement?

Anonymous 2006-09-19 12:32

I found a thread on Maxima.org about P1320 in 2000–2001 Maximas—many users report it's caused by failing ignition coils. We never replaced them before, so I did. Nissan quoted $600 for parts and $180 labor. The job took only 30 minutes; I found six OEM coils at O'Reilly’s for $325 total. I changed three last night—performance improved. Tonight I’ll install the remaining three. Also, when testing, the car shakes—but turning off the AC stops it. I'll post an update in a few days. Cheers—Dyrk

Anonymous 2006-09-19 12:44

The shaking is due to cylinder misfiring. The AC load affects engine performance, which explains why the symptom disappears when the AC is off.

Anonymous 2006-09-19 13:49

Thanks Jeff—makes sense. I’ve already picked up the remaining coils and will install them tonight (fingers crossed).

Anonymous 2006-09-19 15:28

I recall there was a known issue with certain Nissan models related to this code—check official recall databases for your VIN.

Anonymous 2006-09-19 20:52

Thanks! I’ve now installed all six ignition coils. After driving 15 miles, the car runs smoothly. I’ll post a follow-up in about a week. Thanks to everyone for the help!

Anonymous 2006-09-20 06:32

Call your Nissan dealer with your VIN—if there’s a recall, they should inform you.

Anonymous 2006-10-11 09:10

It's been about three weeks since I replaced the ignition coils and spark plugs. The car runs great now—simple fix, but frustrating that dealerships charge so much for labor.

Anonymous 2006-10-11 11:07

How much should a dealership charge for this service?

Anonymous 2006-10-12 05:43

They charged me $180 for two hours of labor—only took me 30 minutes. A fair rate would be one hour. Parts were also expensive: I found OEM coils at a dealer for $65 each (vs. ~$95).

Anonymous 2006-10-30 15:58

I’ve had repeated 'Service Engine Soon' lights—dealership service is unreliable. Two years ago, I had P1320 and they replaced just one coil after many failed attempts. Now, after replacing O2 sensor and wiring, the code returned. Do I need to replace all five other coils? How did you do it yourself? I found some at AZ for $69 each—now I’m done taking my car to dealerships. Frustrated!

Anonymous 2006-10-30 16:28

Have your vehicle checked for a recall—this is a known issue on certain Nissan models.

Anonymous 2010-05-27 16:38

How do I clear the P1320 error code? Any step-by-step instructions?

Anonymous 2012-01-24 22:34

I replaced all ignition coils, but my 2000 Maxima’s ECU doesn’t recognize aftermarket ones. Nissan said they’re not heat-rated high enough. Now I have power issues and the 'Service Engine Soon' light stays on—recently it started blinking and loses pulling power before returning to normal. My car feels sick. I replaced a speed sensor 3 months ago and spark plugs—any help?!