After Market Ignition Coil Boots Recommendation

[Fitz98]

Replacing plugs on 2020 Nissan Armada with approx. 120k miles.
Getting P219D code.
I have an aftermarket warranty with the dealer that I got when purchasing the car used. They said warranty does not cover plugs... understandable as they are a maintenance item. They said coils were good and injectors were good. Their diagnostics stated to replace plugs, but I will be doing this myself, not paying ridiculous dealer rates for this.
Looking to replace coil boots while the coils are pulled.
Rock Auto carries only these for this vehicle:
Standard Motor Products Boots

AZ has Duralast
https://www.autozone.com/powertrain/single-lead-spark-plug-wire

Parts Geek has TRQ
TRQ

I don't have any experience with any of these brands.
Looking for a dependable quality replacement for factory boots.
I could re-use the factory boots, but with 5 years and 120k miles, I imagine they may be in less than perfect condition and there is also a resistor, which without knowing its purpose, may be contributing to the problem.
Opinions? Recommendations?

 

[bdcardinal]

Does Nissan offer boots? Get them over any other brand except maybe NGK or Denso.

 

[Fitz98]

Could not find just the boots from Nissan, Denso or NGK.
Only available with coils.
Could just stay with originals if other after markets are not a good replacement option.
FWIW, dealer said coils would be covered under aftermarket warranty, but only the defective one, if 1 was found to be defective, not all of them.

 

[Lubener]

I would order the ones from Rock Auto. Standard has always been a good second choice to OEM for me.

 

[The Critic]

Could not find just the boots from Nissan, Denso or NGK.
Only available with coils.
Could just stay with originals if other after markets are not a good replacement option.
FWIW, dealer said coils would be covered under aftermarket warranty, but only the defective one, if 1 was found to be defective, not all of them.

Yes, and there's no reason to replace coils or boots unless there is an issue.
It is also unlikely that a P219D will be fixed with coils and plugs. Most likely a valvetrain or injector issue.

 

[zzyzzx]

https://www.engine-codes.com/p219d.html

 

[Urshurak776]

With that code, the plugs and coils are a symptom, not the cause. You have another issue. If you just change the coils and plugs, the same thing is going to happen. If you have a warranty on this vehicle, the dealership should be diagnosing the root cause of this code.

 

[SC Maintenance]

All my Nissan's use Hitachi coils, although I see your Armada uses a different coil number than mine so who knows.

I have successfully used **Edit - NGK boots on my Hitachi coils. RA had mine for cheap. Maybe you have luck there.

Before you do however, a bad boot should show up as a residual misfire in your long term misfire logs. Note logs, it won't show a misfire or even pending misfire unless its pretty bad. On my generation Nissan's I can view this logs with Torque Pro and a cheap dongle. I would do that before throwing parts at it.

Good luck whatever you decide!

 

[Leo99]

This code is specific to cylinder 2. I'd look at what is specific to cycl 2. Swap the coil/boot off cylinder 2 to another cylinder and see if the code follows the coil or stays with cyl 2. Then do the same with the sparkplug. If the code doesn't follow to another cylinder, it's probably not the plug or coil. Then useTechron or your favorite fuel injection cleaner. Maybe cyl 2 injector is gummed up. Those are low cost diagnostics before you replace parts.

 

[Fitz98]

Dealer said they did coil swap to rule out coil issue.
Dealer said plug gap was too large and needed new plugs.
Dealer checked injectors and said they checked O.K.
My scantool has shown many misfires (I think 32?) on cylinder 2 history (nothing current, but P219D code comes back after clearing codes) I can verify later
Going by memory, there are a few misfires in history on another cylinder (I think cylinder 1 maybe 11 misfires?) I can verify later

I can try swapping injectors and coils on my own to verify.

Warranty is a bit of a sore spot for me. I paid, am paying a lot of money, promised it was bumper to bumper, other than tires and brakes and a few other maintenance type items and have used it a few times with success, but there are lots that are not covered. Main issue is that dealer will charge hundreds for diagnostics fee if their diagnosis points to non-warranty repair needed.
At this point for warranty, I probably need to replace plugs so dealer's diagnosis of replacing plugs can be checked off and if code returns/stays, I can take it back. Coils and injectors are covered by warranty, which is why I pushed them while vehicle was in for them to verify to avoid paying diagnostics fee.

 

[Fitz98]

UPDATE:
Disconnected battery
Pulled # 2 Plug Gap is .46
There is some gray RTV looking material on the boot and plug insulator. It appears as if that originated from the side of the spark plug wells during assembly
Blew out boots with compressed air
Swapped #2 and #4 coils and boots
Reconnected battery and idle smoothed out and CEL went off. No codes at this point.
Here are pics of the plug

 

[The Critic]

If you disconnect the 12V battery and reconnect it…the CEL will generally be off for a little while if your issue is intermittent.

 

[troymcclure]

I did a deep dive into boots. It appears almost all aftermarket boots are made by PJC. This includes NGK, Denso and many other branded boots. They all have PJC molded into the silicone.

https://www.ppenpjc.com/coil-on-plug-boots

Are they good? I will find out this weekend. I bought a Denso branded set to have on hand as I am doing plugs.