Honda Accord 2008 Manual page 450

Fuel and Emissions Systems
System Description (cont'd)
Intake Manifold Tuning (IMT) Valve System (J35Z3 engine)
E n g i n e p o w e r is a d j u s t e d b y o p e n i n g a n d c l o s i n g t h e i n t a k e m a n i f o l d t u n i n g ( I M T ) v a l v e . W h e n t h e v a l v e is c l o s e d ,
t h e r e is h i g h t o r q u e a t l o w e n g i n e s p e e d . W h e n t h e v a l v e is o p e n , t h e r e i s h i g h t o r q u e a t h i g h e n g i n e s p e e d .
T h e i n t a k e m a n i f o l d t u n i n g ( I M T ) a c t u a t o r c o n t a i n s a s e n s o r t h a t d e t e c t s t h e I M T v a l v e p o s i t i o n a n d s e n d s it t o t h e
E C M / P C M .
I M T V A L V E
11-52