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Throttle Body Injection (TBI) Cleaning Procedure
WARNING: BEFORE BEGINNING THE RAIL-FLUSH PROCEDURE IT IS IMPORTANT
TO TEST THE VEHICLE FOR INJECTOR LEAKDOWN. IF AN INJECTOR IS LEAKING
IT IS POSSIBLE TO DAMAGE THE ENGINE DUE TO "HYDROLOCK'. (LIQUID
FILLING THE CYLINDER). IF THE VEHICLE HAS INJECTOR LEAKAGE DO NOT DO
THE RAIL FLUSH BUT PROCEDE DIRECTLY TO THE ENGINE CLEANING PROCESS.
RETEST FOR LEAKDOWN AFTER THE CLEANING PROCESS IS COMPLETED.
RAIL FLUSH PROCEDURE: Follow these steps to circulate the cleaning mixture through
the
unit to clean the throttle body, injector screens, and pressure regulator.
TBI
Verify that
1.
TBI Setup Steps 1-10
Refer to the vehicle's service manual for the manufacturer's recommended pressure.
2.
Adjust
3.
TIMER
Press and hold the
4.
Turn the
5.
Gasoline (Petrol) PRESSURE REGULATOR
recirculating mode, the TBI unit is being cleaned, and the particles are filtered through the
unit's filter.
6.
Check all connections for leaks.
•
ake a note of the fuel pressure reading; this is the true opening pressure of the
M
vehicle's pressure regulator without vacuum assist when the engine is at normal
operating temperature.
•
NOTE: By turning the Gasoline (Petrol) PRESSURE REGULATOR in and out and
"PULSING" the mixture from time to time, the cleaning process will be enhanced
in this mode.
After the 10 minutes has expired adjust
7.
may be adjusted depending on the condition of the vehicle's fuel system.)
Press the
8.
START/RUN
9.
Start the vehicle
When the run time expires, the cleaning is complete. The unit will automatically shut off and
10.
the alarm will sound. Press off the
11.
Turn OFF the vehicle's ignition.
above have been completed before continuing.
knob for 10 minutes. Press the
switch until pressure builds.
START/RUN
switch.
to begin the fuel system cleaning process.
ON/OFF
switch on.
ON/OFF
clockwise until closed. While in the
knob for an additional 30 minutes. (Run time
Timer
switch.
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