Dodge Sprinter 2006 - Page 569

TE S T ACTION AP PLICAB ILITY
2Startandidletheengine.
Wit h t h e DRBIII" in Sen sor s, rea 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 mg/st r k wit h th e en gin e at idle.
NOTE: The MAF Sensor reading should be within 5% of the MAF Spec
re ad ing .
Is t h e MAF Sen sor rea din g wit h in 5% of t h e MAF Spec?
All
Ye s → Go To 3
No → Go To 7
3 Pla ce th e tr a n sm ission in Pa r k or N eu t ra l for t h is t est .
St a r t th e engin e an 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, rea 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 mg/st r k wit h th e en gin e speed a t 3000 RP M.
NOTE: The MAF Sensor reading should be within 5% of the MAF Spec
re ad ing .
Is t h e MAF Sen sor rea din g wit h in 5% of t h e MAF Spec?
All
Ye s → Go To 4
No → Go To 7
4 NOTE: Inspect the complete exhaust system for restriction. Restrictions in
the exhaust system can cause improper EGR flow. Repair as necessary
Allow th e engin e to idle u n t il t h e en gin e r ea ch es oper a tin g t em per a t u r e.
Wit h th e DRBIII", a ct u a te t h e EGR Posit ion er wit h th e en gin e idling.
NOTE: The EGR Positioner will actuate from 5% to 95%. With the engine
idling at approximately 680 RPM the MAF reading should sw itch a mini-
m u m o f 200 m g /s trk be t w e e n 5% an d 95% o f EGR a c t u a ti o n .
Not e th e MAF r ea din gs.
Does th e MAF swit ch a m in im um of 200 mg/st r k bet ween 5% a n d 95% of E GR
act u a t ion ?
All
Ye s → Go To 5
No → Go To 6
5 Allow th e engin e to idle u n t il t h e en gin e r ea ch es oper a tin g t em per a t u r e.
Wit h t h e DRBIII", a ct u a t e t he E GR P osit ion er wit h t h e en gin e speed at 1200 RP M.
NOTE: The EGR Positioner will actuate from 5% to 95%. With the engine
speed at approximately 1200 RPM the MAF reading should switch a mini-
m u m o f 200 m g /s trk be t w e e n 5% an d 95% o f EGR a c t u a ti o n .
Not e th e MAF r ea din gs.
Does th e MAF swit ch a m in im um of 200 mg/st r k bet ween 5% a n d 95% of E GR
act u a t ion ?
All
Ye s → No problem foun d. Test com plet e.
Per for m ROAD TE ST VE RIF ICATION - VER-2.
No → Go To 6
6 Tur n th e ign it ion off.
Rem ove th 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
rest r ict ion s.
Wer e an y pr oblem s fou n d?
All
Ye s → Clea n or r epa ir a s n ecessa ry.
Per for m ROAD TE ST VE RIF ICATION - VER-2.
No → Repla ce th e EGR Va lve.
Per for m ROAD TE ST VE RIF ICATION - VER-2.
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DRI V EABI LI T Y - DI ESEL
P 2066-MAS S AIR FLOW S EN SOR P LAU S IBILITY — Co n t in ued