MITSUBISHI MONTERO 1991 Service Manual

2. ENGINE IGNITION TIMING - Must be set with timing terminal
grounded.
3. ENGINE VACUUM - Must be normal for your altitude.
4. ENGINE VALVE TIMING - To specifications.
5. ENGINE COMPRESSION - To specifications.
6. ENGINE P.C.V. SYSTEM - Must flow freely.
7. ENGINE EXHAUST SYSTEM - Must be free of any restrictions.
8. POWER BRAKE BOOSTER - No internal vacuum leaks.
9. TORQUE CONVERTER CONDITION - May cause very low power at breakaway
or high speed (Only 1 condition at a time).
10. FUEL CONTAMINATION - High alcohol or water content.
11. FUEL INJECTORS - Rough idle may be caused by injector wiring not
connected to correct injector.
12. ENGINE SECONDARY IGNITION CHECK - Abnormal scope patterns.
13. TECHNICAL SERVICE BULLETINS - Any that apply to vehicle.
14. All air intake piping and vacuum hoses must be in place and
secure. The proper air filter element must be used.
15. FUEL PRESSURE - Must be correct.
Specification: With no vacuum at the regulator:
48 PSI on V6 & non-turbo 4 Cyl. engines
36 PSI on turbo engines
NS-1: IGNITION CHECK FLOW CHARTS - 2.0L
Fig. 235: NS-1 Flow Chart & Circuit Diagram (2.0L) (1 of 5)

Fig. 236: NS-1 Flow Chart & Circuit Diagram (2.0L) (2 of 5)

Fig. 237: NS-1 Flow Chart & Circuit Diagram (2.0L) (3 of 5)

Fig. 238: NS-1 Flow Chart & Circuit Diagram (2.0L) (4 of 5)

Fig. 239: NS-1 Flow Chart & Circuit Diagram (2.0L) (5 of 5)
NS-2: CHECKING CRANK ANGLE SENSOR - 2.0L

Fig. 240: NS-2 Flow Chart & Circuit Diagram (2.0L)
NS-3: FUEL TEST - 2.0L

Fig. 241: NS-3 Flow Chart & Circuit Diagram (2.0L) (1 of 3)

Fig. 242: NS-3 Flow Chart & Circuit Diagram (2.0L) (2 of 3)

Fig. 243: NS-3 Flow Chart & Circuit Diagram (2.0L) (3 of 3)
NS-4: CHECKING FUEL PUMP OPERATION - 2.0L

Fig. 244: NS-4 Flow Chart & Circuit Diagram (2.0L) (1 of 2)