General Diagnostic Table - Subaru FORESTER 2001 Service Manual

Engine (Diagnostics)

19. General Diagnostic Table

A: INSPECTION
1. ENGINE
S088257A1001
NOTE:
Malfunction of parts other than those listed is also possible. <Ref. to ME(DOHC TURBO)-91, Engine Trouble
in General.>
Symptom
1. Engine stalls during idling.
2. Rough idling
3. Engine does not return to idle.
4. Poor acceleration
5. Engine stalls or engine sags or hesitates at
acceleration.
GENERAL DIAGNOSTIC TABLE
S088257A10
Problem parts
1) Idle air control solenoid valve
2) Pressure sensor
3) Mass air flow and intake temperature sensor
4) Ignition parts (*1)
5) Engine coolant temperature sensor (*2)
6) Crankshaft position sensor (*3)
7) Camshaft position sensor (*3)
8) Fuel injection parts (*4)
1) Idle air control solenoid valve
2) Pressure sensor
3) Mass air flow and intake temperature sensor
4) Engine coolant temperature sensor (*2)
5) Ignition parts (*1)
6) Air intake system (*5)
7) Fuel injection parts (*4)
8) Throttle position sensor
9) Crankshaft position sensor (*3)
10) Camshaft position sensor (*3)
11) Oxygen sensor
12) Fuel pump and fuel pump relay
1) Idle air control solenoid valve
2) Engine coolant temperature sensor
3) Accelerator cable (*6)
4) Throttle position sensor
5) Pressure sensor
6) Mass air flow and intake air temperature sensor
1) Pressure sensor
2) Mass air flow and intake temperature sensor
3) Throttle position sensor
4) Fuel injection parts (*4)
5) Fuel pump and fuel pump relay
6) Engine coolant temperature sensor (*2)
7) Crankshaft position sensor (*3)
8) Camshaft position sensor (*3)
9) A/C switch and A/C cut relay
10) Engine torque control signal circuit
11) Ignition parts (*1)
1) Pressure sensor
2) Mass air flow and intake temperature sensor
3) Engine coolant temperature sensor (*2)
4) Crankshaft position sensor (*3)
5) Camshaft position sensor (*3)
6) Purge control solenoid valve
7) Fuel injection parts (*4)
8) Throttle position sensor
9) Fuel pump and fuel pump relay
EN(DOHC TURBO)-344
S088257