Thanks Mike - can you expand on why? I like technical explanations :-) Thanks to Dave Stragand, we did get hold of a copy of the Island kit installation instructions, and though I haven't read through them myself, I did ask Jason (who has) if it was meant to be removed, and he said he couldn't find anything. Martin #1458 Senatorpack@xxxx wrote: > In a message dated 12/29/2001 11:48:23 PM Eastern Standard Time, > webmaster@xxxx writes: > > << > What does this solenoid do and is there any reason for it to be removed > on an engine with the Island twin kit? >> > > On the twin turbo it is not used. > > Sincerely, > Mike