1989-Mitsu-Factory Manual · mpi system · страница 9 из 48 · Открыть оригинал PDF ↗
FUEL TANK AND FUEL LINE
| Symptom | Probable cause | Remedy |
|---|---|---|
| Engine malfunctions d iffii fl | Bent or kinked fuel pipe or hose | Repair orreplace |
| ue to nsucent ue suPPlY | Clogged fuel pipe or hose | Clean or replace |
| Clogged fuel filter or in-tank fuel filter | Replace | |
| Water in fuel filter | Replace the fuel filter or clean the fuel tank and fuel line | |
| Dirty or rusted fuel tank interior | Clean or&place | |
| Malfunctioning fuel pump (Clogged filter in the pump) | Replace ~ | |
| Evaporative emission l lf | Mispiping of vapor line | .. Correct |
| oontro system maunc- iions (When tank cap is * | Disconnectvapor line piping joint | Correct |
| emoved, pressure te- easing noise is heard) | Folded, bent, cracked or clogged vapor line | Replace |
| Faulty fuel tank cap | Replace | |
| Malfunctioning overfill limiter (two-way valve) | Replace |

SERVlCE ADJUSTMENT PROCEDURES
CURB IDLE SPEED INSPECTION N14FK4C4
Caution
1. The improper setting (throttle valve opening) will in-
crease exhaust gas temperature at deceleration, reduc-
ing catalyst iiie greatly and deteriorating exhaust gas
cleaning performance. It also has effect on fuel con-
sumption and engine braking.
2. When the battery’s terminal is re-connected, the engine
rpm can become high. When this happens, refer to
GROUP INTRODUCTION AND MASTER TROUBLE-
SHOOTING-Precautions Before Service (Servicing Elec-
trical System).
Pre-conditions for checking
@ Engine coolanttemperatuie: 85-95X (185205°F)
l Lights and accessories: OFF
l Transmission: neutral (N or P for vehicles with automatic
transmission)
o Steering wheel: neutral position
(1) Place the timing light in position.
(2) Connect the tachometer. _
NOTE
Insert a paper clip from the harness side to the connector
(1 pin) between the primary side and noise filter of the igni-
tion coil, and connect the tachometer.


