Turbosmart BOOST CONTROLLERS – ELECTRONIC - e-Boost2 (2005-current) – Complete User Manual - Manual (Page 37)

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37
TROUBLESHOOTING
The following points should be checked if you find that your engine is over-boosting, under-boosting or the boost pressure is fluctuating
erratically. Please note the following checks will cure 99% of problems experienced when fitting a Turbosmart e-Boost2.
-
Check that the e-Boost solenoid is installed correctly.
- Ensure the factory boost control solenoid is not connected in the hose between the pressure source and the waste gate actuator
- Ensure the length of the waste gate actuator rod has not been modified, refer to the manufactures specifications
- Check to see if the e-Boost solenoid is not blocked or contaminated with dirt, oil build up or debris
- Check the joining hoses for splits, cracks or loose connections and ensure they are not blocked, kinked or restricted, particularly if
the existing hose was reused
- Pressure test the waste gate actuator for leakage, the diaphragm or housing may be cracked or split
- Ensure the smooth and free operation of the waste gate arm in the turbo exhaust housing.
- Check that the hose between the e-Boost and the inlet manifold is not obstructed, broken or kinked.
- Check that the OBS is set higher than the boost pressure you are aiming for.
- Check the Blow-off Valve for leakage, some are used as over-boost valves
- Gate pressure maybe set too close to your actual boost pressure
- Ensure correct sensitivity setting.
- Use the Solenoid check function to determine whether the solenoid is electrically connected to the head unit.
SUBARU STI 01 - 02
1 1 1 1 1
B134 B135 B136 B137 B84
RPM
ECU location: C
SUBARU STI 03 - 04
1
B134
1
B135
1
B137
1
B84
1
B136
RPM
ECU location: C