Dodge Sprinter 2006 Manual page 569

P 2066-MAS S AIR F LOW S EN S OR P LAU S IB ILITY —
TES T
2 St a r t a n d idle t h e en gin e.
Wit h t h e DRBIII in Sen sor s, r ea d t h e MAF m g/st r k a n d com pa r e it t o t h e MAF
SP E C m g/st r k wit h t h e en gin e a t idle.
N OTE: Th e MAF S e n s o r re a d in g s h o u ld be w ith in 5% o f th e MAF S p e c
re a d in g .
Is t h e MAF Sen sor r ea din g wit h in 5% of t h e MAF Spec?
Yes
No
3 P la ce t h e t r a n sm ission in P a r k or Neu t r a l for t h is t est .
St a r t t h e en gin e a n d in cr ea se en gin e t h e en gin e speed t o 3000 RP M.
Wit h t h e DRBIII in Sen sor s, r ea d t h e MAF m g/st r k a n d com pa r e it t o t h e MAF
SP E C m g/st r k wit h t h e en gin e speed a t 3000 RP M.
N OTE: Th e MAF S e n s o r re a d in g s h o u ld be w ith in 5% o f th e MAF S p e c
re a d in g .
Is t h e MAF Sen sor r ea din g wit h in 5% of t h e MAF Spec?
Yes
No
4 N OTE: In s p e c t th e c o m p le te e x h a u s t s y s te m fo r re s tric tio n . Re s tric tio n s in
th e e x h a u s t s y s te m c a n c a u s e im p ro p e r EGR flo w. Re p a ir a s n e c e s s a ry
Allow t h e en gin e t o idle u n t il t h e en gin e r ea ch es oper a t in g t em per a t u r e.
Wit h t h e DRBIII , a ct u a t e t h e E GR P osit ion er wit h t h e en gin e idlin g.
N OTE: Th e EGR P o s itio n e r w ill a c tu a te fro m 5% to 95%. With th e e n g in e
id lin g a t a p p ro x im a te ly 680 RP M th e MAF re a d in g s h o u ld s w itc h a m in i-
m u m o f 200 m g /s trk be tw e e n 5% a n d 95% o f EGR a c tu a tio n .
Not e t h e MAF r ea din gs.
Does t h e MAF swit ch a m in im u m of 200 m g/st r k bet ween 5% a n d 95% of E GR
a ct u a t ion ?
Yes
No
5 Allow t h e en gin e t o idle u n t il t h e en gin e r ea ch es oper a t in g t em per a t u r e.
Wit h t h e DRBIII , a ct u a t e t h e E GR P osit ion er wit h t h e en gin e speed a t 1200 RP M.
N OTE: Th e EGR P o s itio n e r w ill a c tu a te fro m 5% to 95%. With th e e n g in e
s p e e d a t a p p ro x im a te ly 1200 RP M th e MAF re a d in g s h o u ld s w itc h a m in i-
m u m o f 200 m g /s trk be tw e e n 5% a n d 95% o f EGR a c tu a tio n .
Not e t h e MAF r ea din gs.
Does t h e MAF swit ch a m in im u m of 200 m g/st r k bet ween 5% a n d 95% of E GR
a ct u a t ion ?
Yes
No
6 Tu r n t h e ign it ion off.
Rem ove t h e E GR va lve a n d ch eck t h e va lve a n d flow pa ssa ges for debr is or ot h er
r est r ict ion s.
Wer e a n y pr oblem s fou n d?
Yes
No
ACTION
→ Go To 3
→ Go To 7
→ Go To 4
→ Go To 7
→ Go To 5
→ Go To 6
→ No pr oblem fou n d. Test com plet e.
P er for m ROAD TE ST VE RIF ICATION - VE R-2.
→ Go To 6
→ Clea n or r epa ir a s n ecessa r y.
P er for m ROAD TE ST VE RIF ICATION - VE R-2.
→ Repla ce t h e E GR Va lve.
P er for m ROAD TE ST VE RIF ICATION - VE R-2.
DRI V EABI LI T Y - DI ESEL
151
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