Chrysler Sebring 2005 Service Manual page 2315

P 0172-F U EL S YS TEM 1/1 RICH —
TES T
8 Ch eck for a n y of t h e followin g con dit ion s/m ech a n ica l pr oblem s.
AIR INDUCTION SYSTE M - m u st be fr ee fr om r est r ict ion s.
E NGINE VACUUM - m u st be a t lea st 13 in ch es in n eu t r a l
E NGINE VALVE TIMING - m u st be wit h in specifica t ion s
E NGINE COMP RE SSION - m u st be wit h in specifica t ion s
E NGINE E XH AUST SYSTE M - m u st be fr ee of a n y r est r ict ion s or lea ks.
E NGINE P CV SYSTE M - m u st flow fr eely
TORQUE CONVE RTE R STALL SP E E D - m u st be wit h in specifica t ion s
P OWE R BRAKE BOOSTE R - n o in t er n a l va cu u m lea ks
F UE L - m u st be fr ee of con t a m in a t ion
F UE L INJ E CTOR - plu gged or r est r ict ed in ject or ; con t r ol wir e n ot con n ect ed t o
cor r ect in ject or
Ar e t h er e a n y en gin e m ech a n ica l pr oblem s?
Yes
No
9 Ign it ion on , en gin e n ot r u n n in g.
Discon n ect t h e O2 Sen sor h a r n ess con n ect or.
Wit h t h e DRBIII , m on it or t h e O2 Sen sor volt a ge.
Th e O2 Sen sor volt a ge sh ou ld r ea d 5.0 volt s on t h e DRBIII
discon n ect ed.
Usin g a ju m per wir e, ju m p fr om t h e O2 Sign a l cir cu it t o t h e O2 Ret u r n cir cu it in t h e
O2 Sen sor h a r n ess con n ect or.
N OTE: Th e v o lta g e s h o u ld d ro p fro m 5.0 v o lts d o w n to 2.5 v o lts w ith th e
ju m p e r w ire c o n n e c te d .
Did t h e O2 Sen sor volt a ge dr op fr om 5 volt s t o 2.5 volt s?
Yes
No
10 Tu r n t h e ign it ion off.
Discon n ect t h e O2 Sen sor h a r n ess con n ect or.
Tu r n t h e ign it ion on .
Mea su r e t h e volt a ge of t h e O2 Sign a l cir cu it in t h e O2 Sen sor h a r n ess con n ect or.
Is t h e volt a ge a bove 4.8 volt s?
Yes
No
ACTION
→ Repa ir a s n ecessa r y.
P er for m P OWE RTRAIN VE RIF ICATION TE ST VE R - 5.
→ Test Com plet e.
→ Repla ce t h e O2 Sen sor
P er for m P OWE RTRAIN VE RIF ICATION TE ST VE R - 5.
→ Go To 10
→ Ch eck t h e O2 Sign a l cir cu it for da m a ge, sh or t t o gr ou n d, open , or
sh or t t o volt a ge. In spect t h e O2 Sen sor con n ect or a n d t h e P CM
h a r n ess con n ect or. If OK, r epla ce t h e P ower t r a in Con t r ol Modu le
in a ccor da n ce wit h t h e Ser vice In for m a t ion .
P er for m P OWE RTRAIN VE RIF ICATION TE ST VE R - 5.
→ Go To 11
DRI V EABI LI T Y - N GC
Co n tin u e d
wit h t h e con n ect or
111
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