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The mkiv Supra Owners Club

NGk iridium spark plug


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VVTi TT Supra? What boost are you running?

 

If they haven't been changed already then I would fit new coil pack connectors as these become brittle over time and break, see how to guideHERE. No reason to change the coil packs unless they are faulty. There are no HT leads, the coil packs connect directly to the wiring loom.

 

If you are fitting new plugs I'd also replace the 2 x cam cover breather hoses - remove the plastic engine cover and you'll see them - as these also become brittle and can easily split.

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VVTi TT Supra? What boost are you running?

 

If they haven't been changed already then I would fit new coil pack connectors as these become brittle over time and break, see how to guideHERE. No reason to change the coil packs unless they are faulty. There are no HT leads, the coil packs connect directly to the wiring loom.

 

If you are fitting new plugs I'd also replace the 2 x cam cover breather hoses - remove the plastic engine cover and you'll see them - as these also become brittle and can easily split.

 

This hoses you are talking about, is it just standard vacuum hoses?

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