Conquest TSI L4-2555cc 2.6L Turbo VIN N FI (1987)
Fig. 44 ECI checker. 1987-89 models
1.
Start and run engine at fast idle to bring coolant to normal operating temperature (185 to 205°F), then turn ignition Off.
2.
Ensure all lights, accessories and electric cooling fan are Off, then place transaxle in Neutral position.
3.
Place steering wheel in a straight ahead position.
4.
Loosen accelerator cable, then connect a suitable tachometer to engine according to manufacturers' instructions.
5.
Turn ignition switch to Lock position, then disconnect TPS wiring connector.
6.
Jump connector using suitable jumper wires, ensuring not to allow wires to contact each other.
7.
Using a suitable digital voltmeter, connect leads to jumper wires representing green wire with black stripe and green wire with red stripe.
8.
Attach a suitable tachometer to engine according to manufacturers' instructions.
9.
On Conquest models, proceed as follows:
a. Turn ignition switch to Lock position, then remove large harness connector.
b. Set check switch on ECI checker to Off, then the select switch to A.
c. Connect white color connectors labeled CHECKER, of harness connector to connectors of ECI checker. Connect harness connector to ECU
and harness connector, Fig. 44.
d. Set select switch of ECI checker to A, then the check switch to 7. Voltmeter should indicate MPS output voltage.
e. Open throttle valve halfway two or three times, then release to allow it to snap closed. Loosen fixed SAS as shown, Fig. 43.
f.
Start and idle engine, then check MPS voltage. Voltage reading should indicate .9 volts. If voltage reading is not as specified, adjust ISC
adjusting screw until specified reading is obtained. When rotating ISC adjusting screw, use the appropriate tool and only make
adjustments to specifications in the tightening direction.
g. After adjustment, allow engine speed to stabilize, then recheck voltage.
h. Turn ignition switch to Lock position, then disconnect ISC motor connector and connect ISC motor.
i.
Start and idle engine.
10.
On all models, tighten fixed SAS until engine speed increases, then loosen until engine speed no longer decreases (touch point). Tighten one full
turn from touchpoint, then stop engine.
11.
Turn ignition switch On, then check TPS output voltage. Voltage should be .48-.52 volts. If voltage is not as specified, loosen TPS mounting
screw, then rotate TPS to adjust. Rotating TPS clockwise increases output voltage.