TRD supercharger drivers side spark plug change WITHOUT pulling SC

Something wrong about those pictures. Iridium should erode the side electrode not the center electrode. Just took mine out at 90k and the center looks almost new. Zoom in on some of the previous pictures as well.

 

My personal experience with the Denso iridiums in a supercharged 2008 is only 12,000 miles before misfiring under full boost. Both sets had the center fine wire eroded just like the pictures. The ones that weren't eroded away just disintegrated when touched. I switched to NGK ILFR7H which have a slightly larger center wire and currently have about 56,000 miles on them with no misfiring.

 

Not discounting your experience, but it makes me wonder if the little cap on the center electrode was ever there (counterfeit) or if it fell off somewhere during installation or operation. I'm guessing that little cap is the iridium and is supposed to protect the center electrode from erosion. At 90k I can see where the attachment joint is eroding.

 

I wonder if you are using a different model plug. The

$9 Denso IKH22 Iridium Power Spark Plug, (Pack of 1)

Denso IKH22 doesn't have a cap on the center wire.

 

Sorry, I just noticed your pictures-IKH22. If you have any of your old plugs is the center wire still solid?

 

Top one is old, the bottom one new. With a magnifier I see caps on both. Camera doesn't pick it up. Denso website has better pictures. Still wonder if running lean or detonation might not knock it off leaving the skinny wire to erode quickly.

 

Don't know what to tell you - that's what came out.

 

I'm changing my plugs what do think about e3 plugs ? And about how long did it take you to change them?

 

Recommended plugs for S/C applications are listed in the first post of the TRD/ Magnuson 4.0 Supercharger Tips, Tricks, and Mods thread.

 

If you ever wondered what 100,000 miles looks like on an iridium spark plug.


Passenger side only. Gonna tackle the driver's side on Friday. After reading, it's going to take me either 45 minutes or six hours. I hope it's 45 minutes but I know it will be six hours and a lot of rage.

 

This thread is still helping folks in 2024 like me change the plugs and coil packs in a SC Tacoma. It is possible to change plugs and coil packs on a supercharged 2011 Tacoma.

Went fairly smoothly for me thanks to the instructions and pictures. The front drivers side plug (I think it is #2?) gave me the most trouble. There was a wiring harness on top of the clip for the coil pack connector and I struggled to get it disconnected.

Thanks to those that started this thread and have added information and pictures along the way.

 

I’m about to tackle this job. After reading this post, I’m not looking forward to it. I’ve never been intimidated by changing out some old spark plugs and wires. lol. Thanks for the great write up.