Precis L4-1468cc 1.5L SOHC (1993)
Crankshaft Position Sensor: Adjustments
Federal
Air/Fuel Mixture
The Idle Mixture has no manual adjustments, the mixture is entirely controlled by the ECU (through the fuel injection). If the Idle Mixture is not within
the operational limits, proceed as follows:
1.
Pull fault codes (refer to ON-BOARD DIAGNOSTICS in TESTING AND INSPECTION) and perform all tests and inspections listed with each
code.
2.
If there are no fault codes or the fault codes do not reveal the cause of the complaint, refer to DIAGNOSIS BY SYMPTOM in TESTING AND
INSPECTION.
Basic Ignition Timing
ADJUSTMENT CONDITIONS:
Coolant temperature, 170°F-205°F.
All accessories, Off.
Transmission, N (Neutral).
Parking Brake, ON.
1.
Connect timing light.
Ignition Timing Adjustment Connector Location
2.
With the engine stopped, connect a lead wire, between the terminal for ignition timing adjustment (located in the engine compartment) and ground.
3.
Start and run the engine at curb idle speed.
Standard value
Curb idle speed....700 ± 100 rpm
4.
Check base ignition timing and adjust if necessary.
Standard value
Base Timing....5° ± 2°BTDC
5.
If the timing is incorrect, loosen the distributor's holding nut, and then turn the distributor until the timing is correct.
NOTE: The ignition timing will be advanced if the distributor is turned to the left and retarded if it is turned to the right.
6.
After adjustment, securely tighten holding nut.
CAUTION: Be careful, when tightening the nut, that the distributor does not move.
7.
Stop the engine.
8.
Disconnect the lead wire connected at step 2.
