what kind a weird plug is this

[jambo101]

Originally Posted by YarisSedan

I hope when you say regular NGK plugs you mean the oem plugs. Iridium NGKs which are not really regular. Depending where you buy them they can run from 15-30 a piece.

If you are buying regular ngks you would be paying like 2 or 3 bucks a piece.

THe difference? The regular NGKs with copper core will burn out really fast. In a matter of a week. If it dosnt burn out the coil first. Iridiums are designed to withstand the spark generated by the coil. Anything less than a platinum plug will wear out extremely fast.

My Yaris is too new to need plugs at the moment so i dont know what the oem plugs are but i have been using the $3 NGK plugs in my Echo and i change them every 100,000kms and so far have had no problems.

[TheSilkySmooth]

Originally Posted by yaris9876

so I need what size mm deep socket for this???? And there is no way that platinums wont work..
iridium is expensive hype... there is so little iridium on there you could count the atoms.
its a drag you cant even get your head into over the holes to look into there..i would have seen the plug tops...

You arent aware of individual ignition coil packs, and next your counting Ir atoms on your plugs? Get the Ir plugs. They are the biggest ignition advance since DLI and will run better than anything on a stocker. Toy typ uses Denso - they are better made than NGK. NGK has terrible GND electrodes that glow and burn off in these lambda motors. Bosch make a very good standard copper plug, everthing else is absolute crap. These DLI ignitions are actually WEAK, they need the small electrode utilised in the Ir plugs to prevent excessive misfire. Donty think you can outsmart the DENSO IGNITION GUYS.
-the Bro

[kou]

why be cheap on something you buy every 8-10 years.

[Maddman]

Originally Posted by yaris9876

come on some one give some info on this!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Just to help you out, it's called TDI. Toyota Direct Ignition. I used to build the Toyota engines in a factory. You don't need to replace them at all.