MITSUBISHI MONTERO 1991 Service Manual

Fig. 21: Injector Bank - Known Good - Voltage Pattern
EXAMPLE #4 - CURRENT CONTROLLED DRIVER
From 1984 to 1987, Chrysler used this type injector drive on
their TBI-equipped engines. See Fig. 22 for a known-good pattern.
Instead of the ground side controlling the injector, Chrysler
permanently grounds out the injector and switches the power feed side.
Most systems do not work this way.
These injectors peak at 6 amps of current flow and hold at 1
amp.

Fig. 22: Single Injector - Known Good - Voltage Pattern
EXAMPLE #5 - CURRENT CONTROLLED DRIVER
These two known-good waveform patterns are from a Chrysler 3.
0L V6 VIN [3]. The first waveform, Fig. 23, is a dual trace pattern
that illustrates how Chrysler uses the rising edge of the engine speed
signal to trigger the injectors. The second waveform, Fig. 24, was
taken during hot idle, closed loop, and no load.

Fig. 23: Injector Bank - Known Good - Voltage Pattern

Fig. 24: Injector Bank - Known Good - Voltage Pattern
EXAMPLE #6 - CURRENT CONTROLLED DRIVER
This known-good pattern from a Ford 3.0L V6 PFI VIN [U]
illustrates that a zener diode inside the computer is used to clamp
the injector's inductive kick to 35-volts on this system. See Fig. 25.

Fig. 25: Injector Bank - Known Good - Voltage Pattern
EXAMPLE #7 - CURRENT CONTROLLED DRIVER
This known-good waveform from a Ford 5.0L V8 CFI VIN [F] was
taken during hot idle, closed loop, and no load. See Fig. 26.

Fig. 26: Single Injector - Known Good - Voltage Pattern
EXAMPLE #8 - CURRENT CONTROLLED DRIVER
These two known-good waveform patterns are from a GM 2.0L In-
Line 4 VIN [1]. Fig. 27 illustrates the 78 volt inductive spike that
indicates a zener diode is not used. The second waveform, Fig. 28, was
taken during hot idle, closed loop, and no load.

Fig. 27: Single Injector - Known Good - Voltage Pattern

Fig. 28: Single Injector - Known Good - Voltage Pattern

WHEEL A LIG NM EN T S PEC IF IC ATIO NS & P R O CED URES

1991 M it s u bis h i M onte ro
1991 WHEEL ALIGNMENT
Specifications & Procedures
Chrysler Motors: Colt, Colt Vista, Colt 200,
Ram-50, Stealth, Summit
Mitsubishi: Eclipse, Galant, Mirage, Montero,
Pickup, Precis, 3000GT
WHEEL ALIGNMENT PROCEDURES
NOTE: On vehicles with electronic chassis controls, ensure all
systems are functional before attempting to adjust riding
height or wheel alignment.
CAMBER ADJUSTMENT
Montero, Pickup & Ram-50
1) Check tire inflation. Place front wheel on turning radius
gauge, and level vehicle (unladed). On 2WD models, remove hub cap and
cotter pin. On 4WD models, remove free wheeling hub assembly.
2) On all models, measure camber with camber/caster/kingpin
gauge attached. See appropriate WHEEL ALIGNMENT SPECIFICATIONS table.
If camber is not within specification, remove shock absorber mounting
nut and lock nut.
3) Compress shock absorber and loosen upper arm mounting
bolts and nuts. Adjust camber by increasing or decreasing shims
between upper arm shaft and crossmember. See Fig. 1.
CAUTION: Difference in shim thickness between front and rear must be
.16" (4 mm) or less. DO NOT use more than 3 shims at one
location.
Fig. 1: Adjusting Camber & Caster (Pickup & Ram-50 Shown; Montero
Camber Adjustment Similar)
Courtesy of Mitsubishi Motor Sales of America.
Stealth & 3000GT

Check camber. If camber is not within specification, loosen
eccentric cam nut. Rotate eccentric cam bolt to obtain correct camber.
See Fig. 2 . Each marking represents a change of 1/8-1/4 degree of
camber.
Fig. 2: Adjusting Camber (Stealth & 3000GT)
Courtesy of Mitsubishi Motor Sales of America.
All Other Models
Check camber using a camber/caster/kingpin gauge and turning
radius gauge. See WHEEL ALIGNMENT SPECIFICATIONS table. If camber is
not within specification, replace damaged or bent parts.
CASTER ADJUSTMENT
Colt Vista
Check tire inflation. Place front wheel on turning radius
gauge, and level vehicle (unladed). Remove hub cap and cotter pin.
Measure caster with camber/caster/kingpin gauge attached. See WHEEL
ALIGNMENT SPECIFICATIONS table. If caster is not within specification,
adjust by changing strut bar lock position. See Fig. 3.
Fig. 3: Adjusting Caster (Colt Vista)
Courtesy of Mitsubishi Motor Sales of America.
Montero