TE S T ACTION AP PLICAB ILITY
8 Refer t o th e a ppr opr ia t e Ser vice Infor m a t ion a n d r efer t o Dia gn osis a n d Testin g F u el
Deliver y S yst em t a ble.
NOTE: The following is a list of problems that can cause fuel pressure to
deviate from specification: restricted fuel filter or fuel lines, failed fuel
pressure solenoid, failed fuel lift pump, failed fuel sending unit, contami-
nated fuel, faulty injector.
Wer e th er e an y pr oblem s wit h th e F uel Deliver y Syst em ?
All
Ye s → Repa ir a s necessa r y in a ccor da n ce with t h e Ser vice In for m a t ion .
Per for m ROAD TE ST VE RIF ICATION - VER-2.
No → Go To 9
9 Refer t o ea ch of t he following sym ptom s in th e Dr ivea bilit y cat egor y.
CH E CKIN G TH E F U E L P RE S SU RE SOLE N OID CIRCU ITS
CH E CKING TH E F UE L QUAN TITY SOLE NOID CIRCU ITS
CH E CKIN G TH E F U E L P RE S SU RE SE N SOR CI RCUI TS
Wer e an y pr oblem s fou n d?
All
Ye s → Repa ir a s n ecessa ry.
Per for m ROAD TE ST VE RIF ICATION - VER-2.
No → Go To 10
10 NOTE: An injector that sticks open can cause this DTC. A sticking injector
will cause the engine to misfire and emit excessive black smoke from the
exhaust system.
Refer to t he Ser vice In for m a t ion a n d per for m th e F u el In ject or Lea k Qu a n t it y Test .
Wer e an y pr oblem s fou n d?
All
Ye s → Usin g th e Ser vice In for m a t ion , r em ove a n d in spect th e F u el
In jector s for sign s of da m a ge or debris th a t ma y ca u se t h e in ject or
to st ick. St ick in g in ject or s m a y ca u se th e com bu st ion cha m ber to
becom e bla ck an d oil soa ked. Repla ce In ject or (s) a s n ecessa r y.
Per for m ROAD TE ST VE RIF ICATION - VER-2.
No → Go To 11
11 Wit h th e DRBIII", select Syst em Test , Sm oot h E ng Ru n Ch eck , t h en Cor r ect ion
Qu a n t it y Ch eck.
Per for m t h is t est a t Idle, 2000 r pm an d 3000 r pm .
NOTE:Readings per cylinder should be below ± 0.00450 mm
3
/st ro k e fo r e a c h
cylinder at each engine speed.
Did a n y of t h e cy lin der s exceed ± 0.00450 m m
3
/st r oke du r in g t h is t est ?
All
Ye s → Repla ce F u el In jector of t h e cylin der (s) t h a t h a d r ea din gs above ±
0.00450 m m
3
/st r oke.
Per for m ROAD TE ST VE RIF ICATION - VER-2.
No → Go To 12
12 Wit h t h e DRBIII", select Syst em Test , Sm oot h E n g Ru n Ch eck , th en Cylin der Speed
Ch eck .
NOTE:Readings for all cylinders should be close to each other. Look for one
or two cylinders to differ high or low from the other cylinders.
Did a n y of t he cylinder s differ sign ifica n t ly fr om th e ma jor it y of t h e oth er cylinder s?
All
Ye s → Repla ce Fu el In ject or of t h e cylin der (s) t h a t ha d r ea din gs sign if-
ica n t ly a bove or below t he ot h er fuel inject or s.
Per for m ROAD TE ST VE RIF ICATION - VER-2.
No → Go To 13
121
DRI V EABI LI T Y - DI ESEL
P 2015-F U EL RAIL P RES S URE MALF U NCTION MAXIMU M F U EL FLOW
EXCEED ED —
Co n t in ued
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