COMPONENT LOCATION
GENERAL DESCRIPTION
Rail press. regulator valve(RPRV) is installed in common rail and controls common rail pressure fast as regulating returning quantity of fuel which is delivered to common rail when fast rise of rail pressure is required like the moment of turning engine ON or when fast relief of pressure is required like at the point of deceleration.The lower RPRV current is, the more fuel is supplied to common rail. Thus it leads rail pressure to be high. On the contrary, the higher RPRV current is, the less fuel is supplied to common rail.
DTC DESCRIPTION
P0092 is set when excessive current in power circuit of Rail Pressure regulator valve(integrated with common rail) is detected for more than 0.28 sec.. This code is due to short to battery in power circuit or Rail pressure regulator valve internal short.
DTC DETECTING CONDITION
Item | Detecting Condition | Possible Cause |
DTC Strategy | Voltage monitoring
| RPRV circuit RPRV component
|
Enable Conditions | IG KEY "ON"
|
Threshold Value | Short to battery (power circuit in rail pressure regulator valve)
|
Diagnostic Time | 0.28 sec.
|
Fail Safe | Fuel cut | YES | Engine shut down
|
EGR Off | NO |
Fuel Limit | NO |
Check Lamp | YES |
SCHEMATIC DIAGRAM
SIGNAL WAVEFORM AND DATA
SPECIFICATION
rail pressure regulator valve resistance | Operating frequancy |
3.42 ~ 3.78? (20?) | 1000Hz(1KHz) |