Probe L4-133 2.2L SOHC Turbo (1989)
Figure 2
l.
Adjust the line pressure to 66 psi by moving the locknuts either clockwise or counter-clockwise, Figure 2.
NOTE: CLOCKWISE MOVEMENT WILL INCREASE LINE PRESSURE. COUNTER-CLOCKWISE MOVEMENT WILL DECREASE LINE
PRESSURE.
m.
Tighten the locknuts on the throttle cable.
NOTE: WHILE WATCHING THE PRESSURE GAUGE, MOMENTARILY INCREASE THE ENGINE RPM. THIS SHOULD INCREASE THE
PRESSURE READING ON THE GUAGE. MAKE SURE THAT THE PRESSURE READING IS STILL AT 66 psi WHEN AT IDLE.
REPEAT THIS AT LEAST THREE (3) TIMES.
n.
Raise the vehicle.
o.
Remove the transaxle test adaptor and pressure gauge.
p.
Re-install the square head plug in the transaxle case.
q.
Re-install the splash shield in the inner wheel well.
r.
Re-install the left front tire and wheel assembly.
s.
Lower the vehicle.
10.
Road test for proper operation and shift patterns. Use the 4EAT tester during the road test to confirm correct signals for all shifts. Refer to TSB
89-5A and TSB 89-2-10.
NOTE:
IF THE VEHICLE HAS HARSH OR SOFT SHIFTS AND WAS BUILT PRIOR TO JULY 1988, REPLACE THE 4EAT ELECTRONIC
CONTROLLER.
Valve Body Modification Procedure
1.
Remove the side oil pan and valve body.
2.
Inspect the solenoid wire/terminal condition. Repair or replace if needed. The solenoids are serviced as an assembly, consisting of all 4 solenoids.
3.
Disassemble and clean all components. Refer to the 1989 Probe Shop Manual, Page 17-01-145 for valve body detail.
NOTE: REPLACE THE VALVE BODY ASSEMBLY IF ANY OF THE FOLLOWING VALVES ARE STICKING. THE PRESSURE REGULATOR
VALVE, THROTTLE MODULATOR VALVE, THROTTLE VALVE OR THE LOW REDUCING AND BYPASS VALVE.
