Attachment III - Technical Instructions
CYLINDER IDENTIFICATION (CID) SENSOR
ADJUSTMENT 1993 EXPLORER
AFFECTED VEHICLES:
1993-Model California 4.0L engine equipped Explorers having calibration codes 3-57R-R00, 3-58P-R00, or 3-58R-R00, manufactured at the Louisville Assembly Plant through September 9, 1992.
PROCEDURE:
1. Turn the ignition key to the LOCK position. Make sure the parking brake is engaged and the transmission is in either PARK or NEUTRAL.
2. Open hood, cover fenders.
3. Attach remote starter to the starter relay.
4. While viewing the crankshaft damper from underneath the vehicle, rotate the crankshaft with the remote starter until the "O" degree mark (TDC) is accessible. Refer to exhibit 1.
CRANKSHAFT DAMPER TEMPLATE CUT OUT AND USE FOR SETTING TIMING MARK
5. Cut out the template provided. Refer to exhibit 2.
6. Lay the template on the damper and align the 10~TDC mark on the template with the 10~TDC mark on the damper. Mark the left side edge of the template on the damper. The new mark coincides with 26~ATDC.
7. Remove the snow/ice shield.
8. Loosen both clamps and remove the air cleaner outlet tube.
9. Remove transmission dipstick, if the vehicle is equipped with an automatic transmission.
10. Disconnect cylinder identification (CID) sensor connector. Refer to exhibit 3.
11. Loosen CID sensor hold down bolt.
12. Connect CID testing wiring harness provided to the CID sensor. Refer to exhibit 4 & 5.
13. Make the following connections:
A. Red harness wire - battery positive terminal
B. Black harness wire - battery negative terminal
C. Voltmeter positive lead - White harness wire
D. Voltmeter negative lead - battery negative terminal
14. Rotate the engine at least one complete revolution to take up any slack in the timing chain.
15. Verify engine # 1 cylinder is on the compression stroke with a compression gauge. Use the remote starter to "bump" or turn the engine over.
NOTE:
^ The voltmeter will register battery voltage whenever the CID sensor closes and makes a complete circuit.
^ Engine must be on compression (firing) stroke to reset the CID sensor.
16. Continue to rotate the engine until the voltmeter reads battery voltage. Visually check for the presence of the new mark near the timing pointer on the crankshaft damper.
17. Using a 15/16 in. socket wrench on the alternator pulley bolt, slowly rotate the engine CLOCKWISE until the new mark lines (261 ATDC) up with the timing pointer.
18. Rotate the CID sensor to locate the voltmeter switching point (from 0 volts to 12 volts). The final movement must be in a COUNTERCLOCKWISE direction to the precise point at which time the voltmeter reading changes from 0 volts to 12 volts.
19. Tighten the CID hold down bolt to 17-21 N-m (13-15 ft.lbs.).
20. Disconnect testing wiring harness, voltmeter and remote starter.
21. Connect CID harness connector.
22. Connect starter relay connector.
23. Visually inspect to make sure all vacuum lines are properly connected.
NOTE:
While working in the area of the CID sensor, it is possible to accidentally disconnect the fuel pressure regulator vacuum line.
24. Install air cleaner outlet tube and snow/ice shield.
25. Install transmission dipstick if vehicle is equipped with an automatic transmission.
26. Disconnect battery negative cable and leave disconnected for at least ten minutes. This is done to clear the ECA processor memory and initialize the system. Reconnect cable.
27. Install modification decal on a clear area of the upper radiator support.
28. Start engine and allow it to run until it reaches normal operating temperature.
AUTHORIZED MODIFICATIONS DECAL:
^ The preprinted Authorized Modifications Decal shown is provided in the parts kit.
^ Insert your P&A code and date and attach to a clean surface on the cooling fan shroud.
^ Place clear overlay on the decals.
EMISSIONS RECALL - PROOF OF CORRECTION CERTIFICATE CALIFORNIA-SERVICED CARS ONLY:
^ Obtain a certificate and provide to every owner of California-serviced cars.
^ Advise owner that the certificate is to be returned to the Department of Motor Vehicles (DMV) only if requested. Otherwise they are to retain the certificate for their records.