GReddy Profec - Manual (Page 42)

Trouble Shooting
PATTERN
DIRECTION
BRIGHT
UNIT
ALARM
LAST BOOST
START TYPE
DATE LOCK
・・・・
・・・
・・・・・
・・・・・・
・・・・・
・・・
・・・
・・・
DIGIT
LEFT
10
kPa
1
ON
CONTROL
OFF
SET
GAIN
START BOOST
PEAK
WARNING
LIMITER
SCRAMBLE
・・・・・・・・
・・・・・・・
・・・
・・・・・・・
・・・・・
・・・・・・
・・・・
0 (%)
0 (%)
0 (×100kPa)
0 (×100kPa)
1.20 (×100kPa)
0 (%)
OFF
Symptom Cause Solution
3. Boost Spikes
(Overshooting)
* START BOOST value is set too high.
Troubleshooting
Factory Default Settings
BOOST LO mode
Main SET UP list BOOST LO SET UP list
This section provides troubleshooting guidelines if problems still occur after
performing the TEST mode on page 39.
1. Boost pressure does not
increase or Boost pressure
continues to increase. * Boost pressure signal is not recognized.
* Disconnected solenoid valve harness.
* Bad wiring connection.
* Incorrect installation: Valve unit,
Hose fittings, Hoses and/or Pressure
source.
* Turbo piping leak.
* Check vacuum hose routing.
* Check for any damage to the
solenoid valve unit or wiring.
* Use Hose-fittings as follows:
Actuator type use port [1]. External
type use port [3]
* Check that the Solenoid valve and
fitting are installed properly.
2. Boost response is slow.
* START TYPE is set to NORMAL.
* START BOOST is set to 0.
* Program CONTROL for START TYPE.
* Increase the START BOOST value.
* Decrease the START BOOST value.
4. Boost pressure drops /
Boost rises with RPM
(Boost Creep) * Incorrect GAIN % value programmed.
* Lack of turbo capacity.
* Insufficient Actuator or Wastegate.
* Excessive exhaust back-pressure.
* Adjust GAIN % value.
* Upgrade Actuator, External
Wastegate and/or Turbo.