Honda Accord 2008 Manual page 530

PGM-FI System
DTC Troubleshooting (cont'd)
6. T u r n t h e i g n i t i o n s w i t c h t o O N (II).
7. R e s e t t h e E C M / P C M w i t h t h e H D S .
8 . D o t h e E C M / P C M i d l e l e a r n p r o c e d u r e ( s e e p a g e
1 1 - 3 8 5 ) .
9 . S t a r t t h e e n g i n e . H o l d t h e e n g i n e s p e e d a t
3 , 0 0 0 r p m w i t h o u t l o a d ( A / T i n P o r N , M / T i n
n e u t r a l ) u n t i l t h e r a d i a t o r f a n c o m e s o n , t h e n let it
i d l e .
10. T e s t - d r i v e u n d e r t h e s e c o n d i t i o n s :
• E n g i n e c o o l a n t t e m p e r a t u r e (ECT S E N S O R 1)
a b o v e 1 5 8 °F ( 7 0 °C)
• A / T i n D, M / T i n 4 t h
• D r i v e a t a s t e a d y s p e e d b e t w e e n 1 5 — 7 5 m p h
( 2 4 — 1 2 0 k m / h ) f o r 15 m i n u t e s .
N O T E : D T C P 0 1 7 1 , P 0 1 7 2 , P 0 1 7 4 , a n d / o r P 0 1 7 5 m a y
t a k e u p t o 8 0 m i n u t e s o f t e s t d r i v i n g t o s e t . U s i n g
t h e H D S , m o n i t o r t h e l o n g t e r m f u e l t r i m ( L T F U E L
T R I M ) . If t h e L T F U E L T R I M s t a y s w i t h i n 0 . 8 - 1 . 2 1 ,
t h e r e is n o p r o b l e m a t t h i s t i m e .
1 1 . C h e c k f o r T e m p o r a r y D T C s o r D T C s w i t h t h e H D S .
Is DTC P0171, P0172, P0174, or P0175
Indicated?
Y E S — G o t o s t e p 1 .
N O — T r o u b l e s h o o t i n g is c o m p l e t e . If a n y o t h e r
T e m p o r a r y D T C s o r D T C s a r e i n d i c a t e d , g o t o t h e
i n d i c a t e d D T C s t r o u b l e s h o o t i n g . •
DTC P0300: Random Misfire and Any
Combination of the Following:
DTC P0301: No. 1 Cylinder Misfire Detected
DTC P0302: No. 2 Cylinder Misfire Detected
DTC P0303: No. 3 Cylinder Misfire Detected
DTC P0304: No. 4 Cylinder Misfire Detected
DTC P0305: No. 5 Cylinder Misfire Detected
DTC P0306: No. 6 Cylinder Misfire Detected
S p e c i a l T o o l s R e q u i r e d
• P r e s s u r e g a u g e a d a p t e r 0 7 N A J - P 0 7 0 1 0 A
• A / T l o w p r e s s u r e g a u g e w / p a n e i 0 7 4 0 6 - 0 0 7 0 3 0 1
• A / T p r e s s u r e h o s e 0 7 4 0 6 - 0 0 2 0 2 0 1
• A / T p r e s s u r e h o s e , 2 , 2 1 0 m m 0 7 M A J - P Y 4 0 1 1 A
• A / T p r e s s u r e a d a p t e r 0 7 M A J - P Y 4 0 1 2 0
• O i l p r e s s u r e h o s e 0 7 Z A J - S 5 A A 2 0 0
N O T E :
• B e f o r e y o u t r o u b l e s h o o t , r e c o r d a l l f r e e z e d a t a a n d
a n y o n - b o a r d s n a p s h o t , a n d r e v i e w t h e g e n e r a l
t r o u b l e s h o o t i n g i n f o r m a t i o n ( s e e p a g e 1 1 - 3 ) .
• If t h e m i s f i r e is f r e q u e n t e n o u g h t o t r i g g e r d e t e c t i o n
o f i n c r e a s e d e m i s s i o n s d u r i n g t w o c o n s e c u t i v e
d r i v i n g c y c l e s , t h e M I L w i l l c o m e o n , a n d D T C P 0 3 0 0
( a n d s o m e c o m b i n a t i o n o f P 0 3 0 1 t h r o u g h P 0 3 0 6 ) w i l l
b e s t o r e d .
• If t h e m i s f i r e is f r e q u e n t e n o u g h t o d a m a g e t h e
c a t a l y s t , t h e M I L w i l l b l i n k w h e n e v e r t h e m i s f i r e
o c c u r s , a n d D T C P 0 3 0 0 ( a n d s o m e c o m b i n a t i o n o f
P 0 3 0 1 t h r o u g h P 0 3 0 6 ) w i l l b e s t o r e d . W h e n t h e
m i s f i r e s t o p s , t h e M I L w i l l r e m a i n o n .
• T r o u b l e s h o o t t h e f o l l o w i n g D T C s f i r s t , if a n y o f t h e m
w e r e s t o r e d a l o n g w i t h t h e r a n d o m m i s f i r e D T C ( s )
( B e c a u s e p a r t s c a n s o m e t i m e s f a i l w i t h o u t s e t t i n g
D T C s y o u s h o u l d a l s o d o a p h y s i c a l i n s p e c t i o n o f t h e
s y s t e m s l i s t e d b e l o w ) :
P 0 1 0 1 , P 0 1 0 2 , P 0 1 0 3 : M A F s e n s o r
P 0 1 0 7 , P 0 1 0 8 , P 1 1 2 8 , P 1 1 2 9 : M A P s e n s o r
P 0 1 7 1 , P 0 1 7 2 , P 0 1 7 4 , P 0 1 7 5 : F u e l s y s t e m
P 0 3 3 5 , P 0 3 3 9 : C K P s e n s o r
P 0 5 0 6 , P 0 5 0 7 : I d l e c o n t r o l s y s t e m
P 0 3 6 5 , P 0 3 6 9 : C M P s e n s o r
P 2 6 4 6 , P 2 6 4 7 , P 2 6 4 8 , P 2 6 4 9 : V T E C s y s t e m ( J 3 5 Z 2
e n g i n e )
P 0 4 0 1 , P 0 4 0 4 , P 0 4 0 6 , P 2 4 1 3 : EGR s y s t e m
11-132