Hi!
I have having lot of problems a couple of years now that my HC values are WAY too high on idle, but higher rpm everything is fine..
Have tried to check everything i can, nothing found.. Tried changing back to original dumpwalves but no difference..
Had it to nissan and checked with nissan consult, no problem there.. every sensor worked as it should and well everything was ok...
But it's going to rich i know because of alot of black spots on the rear and love to eat fuel...
I have a 3" exhaust system all the way and new 200cell cat and apexi airfilterkit and boost o 0,9bar.
But was the same before with everything original.. and the turbos and engine is in good shape..
No one has found out what it can be wrong yet with this rb26... im getting tired of this shit....