Honda Accord 2008 Manual page 532

V6
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PGM-FI System
DTC Troubleshooting (cont'd)
12. T e s t - d r i v e t h e v e h i c l e f o r s e v e r a l m i n u t e s i n t h e
r a n g e o f t h e s e r e c o r d e d f r e e z e d a t a p a r a m e t e r s :
• E N G I N E S P E E D
• V S S
• R E L T P S E N S O R
• C L V ( c a l c u l a t e d l o a d v a l u e )
• E C T S E N S O R 1
• A P P S E N S O R
13. C h e c k t h e C Y L 1 M I S F I R E , C Y L 2 M I S F I R E , C Y L 3
M I S F I R E , C Y L 4 M I S F I R E , C Y L 5 M I S F I R E , a n d / o r
C Y L 6 M I S F I R E i n t h e D A T A L I S T f o r 10 m i n u t e s
w i t h t h e H D S .
Does
CYL1
MISFIRE,
CYL2
MISFIRE,
CYL3
MISFIRE,
CYL4
MISFIRE,
CYL5
MISFIRE,
and/or
CYL6
MISFIRE
show
misfire
counts?
Y E S — G o t o s t e p 1 4 .
N O — G o t o s t e p 2 3 .
14. C h e c k t h e f u e l p r e s s u r e ( s e e p a g e 1 1 - 4 0 3 ) .
Is the fuel pressure
OK?
Y E S — G o t o s t e p 15.
N O -
• If t h e p r e s s u r e is t o o h i g h , r e p l a c e t h e f u e l
p r e s s u r e r e g u l a t o r ( s e e p a g e 1 1 - 4 1 7 ) , t h e n g o t o
s t e p 2 3 .
• If t h e p r e s s u r e is t o o l o w , c h e c k t h e f u e l p u m p ,
t h e f u e l f e e d l i n e s , a n d t h e f u e l f i l t e r . If t h e y a r e
O K , r e p l a c e t h e f u e l p r e s s u r e r e g u l a t o r ( s e e p a g e
1 1 - 4 1 7 ) , t h e n g o t o s t e p 2 3 .
15. 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 l e t it
i d l e .
16. C h e c k f o 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 7 6 °F ( 8 0 °C)
• A / T i n P o r N , M / T i n n e u t r a l
• A l l e l e c t r i c a l l o a d s o f f
17. M o n i t o r t h e E N G I N E S P E E D i n t h e D A T A L I S T w i t h
t h e H D S , a n d h o l d t h e e n g i n e s p e e d a t 2 , 5 0 0 r p m .
O n c e t h e e n g i n e s p e e d is m e t , h o l d t h e a c c e l e r a t o r
p e d a l s t e a d y f o r m o r e t h a n 10 s e c o n d s .
Did the engine
speed
vary
more
than
100 rpm
from
2,500
rpm?
Y E S — R e p e a t s t e p 1 7 .
N O — G o t o s t e p 18.
18. W h i l e h o l d i n g t h e e n g i n e s p e e d a t 2 , 5 0 0 r p m , c h e c k
t h e M A F S E N S O R i n t h e D A T A L I S T w i t h t h e H D S .
Is there
about
9.1~
12.9
gm/s?
Y E S -
• J 3 5 Z 2 e n g i n e : C h e c k f o r a i r i n t h e f u e l l i n e , t h e n
g o t o s t e p 2 3 .
• J 3 5 Z 3 e n g i n e : G o t o s t e p 1 9 .
N O — R e p l a c e t h e M A F s e n s o r / I A T s e n s o r ( s e e p a g e
1 1 - 2 7 3 ) , t h e n g o t o s t e p 2 3 .
11-134

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