My 2008 hatchback sti stutters slightly on idle when sitting for a while..it's not a misfire,just a stutter every second or so. It has no other issues, can anyone tell me if this is normal, or do I need to look in to it further. Regards Peter

 

If no fault codes are stored, then when were the spark plugs changed last as they tend to get a hard life in the EJ257.

Mick

 

Only just done before remap mick..but was like this before anyway