Symptom List:
P 0190-F U EL P RES S SEN SOR CIRCU IT MALF SIGN AL VOLTAGE
TOO LOW
P 2008-F U EL P RES S URE S ENS OR CIRCU IT S IGN AL VOLTAGE
TOO LOW
Te s t N o t e : Al l s y m p t o m s l i s t e d a b o v e a r e d i a g n o s e d u s i n g t h e s a m e t e s t s .
Th e title fo r th e te sts w ill be P 0190-F UEL P RESS SENS OR
CIRCU IT MALF S IGN AL VOLTAGE TOO LOW.
Wh e n Mo n i to re d a n d S e t Co n d it i o n :
P 0190-F U EL P RE S S S EN S OR CIRCU IT MALF S IGN AL VOLTAGE TOO LOW
Wh en Mon it or ed: Wit h t h e ign it ion on .
Set Con dition : Th e F u el Ra il P ressu r e Sen sor Sign a l volt a ge is below 0.2 volt .
POSSIBLE CAUSES
FUEL PRESSURE SENSOR
INTERMITTENT CONDITION
FUE L P RE SSURE SE NSOR SIGNAL CIRCUIT SH ORTE D TO GROUND
FUE L P RE SSURE SE NSOR SIGNAL CIRCUIT SH ORTE D TO SE NSOR GROUN D
ECM - FUE L P RE SSURE SE N SOR SIGNAL SH ORTE D TO GROUND
TE S T ACTION AP PLICAB ILITY
1 WARN IN G: THE F U E L IN J ECTION P UMP S U P P LIE S H IGH -P RES S U RE
FU E L TO E ACH IN D IVID U AL INJ E CTOR TH ROU GH HIGH-P R ES S U RE
FUEL LINES. FUEL UNDER HIGH PRESSURE CAN PENETRATE SKIN
AND CAUSE PERSO NAL INJ UR Y. WE AR SAFET Y GO GG LES AND ADE-
QU ATE P R OTECTIVE CLOTH IN G.
NOTE: If DTC P1611, P2306 or P2332 is present with this DTC, diagnose
DTCs P1611, P2306 or P2332 before diagnosing this DTC.
NOTE: If the ECM detects and stores a DTC, the ECM also stores the
e n gi n e /ve h ic le o p e ra ti n g c o n d i tio n s u n d e r w h ic h th e D TC w a s s e t. S o m e o f
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Tur n th e ign it ion on .
Wit h th e DRB, er a se E CM DTCs.
Cycle t h e ign it ion key on a n d off severa l tim es, lea vin g th e key on for a t lea st 10
secon ds at a t im e.
Wit h th e DRB, r ea d E CM DTCs.
Did t h is DTC set a ga in ?
All
Ye s → Go To 2
No → Go To 6
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DRI V EABI LI T Y - DI ESEL
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