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Discussion Starter · #1 ·
I know that some of the modern engine management systems use the spark plug as part of the sensing system. My question is on a 2010 tundra 5.7 do I have to use Toyota plugs or will other brands work without messing up the engine management system? Has anybody out there changed their plugs without any problems???
Thanks in advance,
John
 

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Discussion Starter · #9 ·
just changed mine last weekend with 95700kms went with the ngk iridium. was happy I did them they were pretty nasty looking. no issues so far. the denso plug was 2 bucks cheaper then the ngk, I highly doubt you would really notice a difference between the 2. just get the cheapest :)
Thanks, that's what I was looking for. Just wanted to make sure it wouldn't screw up the engine management.
John
 

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you cant really miss the plugs breauxmeister there are coil packs ontop of every plug, just look for a square black things with a wireharness attached to them and a 8 or 10 mm bolt attached to it holding it to the block. theres 8 of em so they all look the same.
crappy explanation but until someone with pics helps out that's all I got haha.

also for me anyway the drivers side bank took almost triple the amount of time it took for the passenger side. took me about 3 hours to do the job could be done in about a hour or less tho, I had the airbox out and cleaned the maf and throttle body at the same time
 

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Denso and NGK are about the same high quality...

I thought the 10's and earlier didn't have iridium or plat. plugs and called for sooner replacement than 100k miles...



I know fj's with the 4.0 as well as anything else with the 4.0 were known to have NGK in one head and Denso in the other, lol....


Just avoid champion, ac,..
 
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I installed NGKs at 60K, the OEM Densos still looked great and I absolutely felt no difference with the NGKs..
 
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