Hi - I am trying to change the spark plugs in my '01 GS300 and cannot for the life of me remove the "VVT-I" plastic cover!! I removed the 4 screws on top and cannot find anything else attached to it. Is there something I am missing or should I just yank it as hard as I can?!

Also, I purchase Denso Iridium spark plugs online. Do I need to gap them? If so, at what measurement?

TIA!

 

Don't even try to gap the plugs, you will brake them, how do i know, I learned from the hard way. They are pre-gapped.

 

Had the same problem on my first attempt too. You just pry around the edges gently until it comes loose. The seal holds it in there very tight.

 

Great. Thakns DXGS400 & ntran18!

 

I remember that on my 1st gen GS300 there were 6 bolts. Four on the top and two on the bottom at the front of the engine. I don't know if this is true with the 2nd gen GS300, but it might be.

Also, DON'T gap the plugs. They come pre-gapped.