Preliminary Inspection

Preparation With Special Service Tools (SST)




Engine Oil/ Inspection
1. Remove the dipstick and check the engine oil level and condition.
2. Add or change oil as necessary.




Coolant/ Inspection (engine cold)
WARNING
- Removing the radiator cap or the coolant filler cap while the engine is running, or when the engine and radiator are hot is dangerous. Scalding coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system.
- Turn off the engine and wait until It is cool. Even then, be very careful when removing the cap. Wrap a thick cloth around it and slowly turn It counter- clockwise to the first stop. Step back while the pressure escapes.
- When you're sure all the pressure is gone, press down on the cap-still using a cloth-turn it, and remove it.

1. Remove the coolant level gauge from the coolant reservoir.
2. Verify that the coolant level is between the and marks of the gauge.
3. Add coolant if necessary.




Battery, Terminal And Cable/ Inspection
1. Remove any corrosion on the clamps or battery posts and coat them with grease.
2. Verify that the battery top is clean. If necessary, clean with baking soda and water.
3. Verify that cables are not frayed or corroded. Repair or replace if necessary.
4. Verify that cable clamps are tight.
5. Verify that the rubber protector completely covers the positive terminal and clamp.




Battery Electrolyte Level And Specific Gravity/ Inspection
1. Verify that the electrolyte level is between the "Upper" and "Lower" level marks.
2. Add distilled water if necessary. Do not over fill.
3. Check the specific gravity with a hydrometer.


Specific Gravity: 1.27-1.29 at 20°C (68°F)





Air Cleaner Element/ Inspection
1. Check the air cleaner element for excessive dirt and for oil and damage.

CAUTION
- Cleaning the element with compressed air will reduce the element's ability to filter the air. Don't use compressed air to clean the element.

2. Replace the element if necessary.

Basic System Adjustments/ Inspection Preparation
1. Warm up the engine to normal operating temperature.
2. Turn all electric loads OFF.
3. Connect the special service tool, SST-49 B019 9A0 (System Selector), to the data link connector.

NOTE: If the SST is not used, ground the "TEN" terminal of the data link connector.




4. Connect a tachometer to the data link connector IG- terminal as shown.

Ignition Timing/ Inspection
The ignition timing is set at the factory and must not be adjusted. Any adjustment will negatively effect the engine performance.

1. Perform "Preparation" steps 1 through 4.
2. Verify that the electric coolant fan does not operate.
3. Remove the fuel filler cap.




4. Set SYSTEM SELECT to position 1.
5. Set TEST SW to SELF-TEST.




6. If the SST is not used, connect a jumper wire between the TEN terminal and the GND terminal of the data link connector.
7. Make sure the idle speed is within specification; if not, adjust the idle speed.

Idle speed: (Neutral or P range): 550-950 rpm

8. Connect a timing light to the high-tension lead of the front trailing-side.

NOTE
- Some timing lights will not illuminate even if the ignition is working properly.




9. Verify that the timing mark (white) on the crankshaft position sensor plate is aligned with the indicator pin.

Ignition timing:
- Trailing side: 20° ATDC
- Leading side: 5° ATDC

10. If the timing is incorrect, check the following items:




Verify that no trouble code number is present for the following circuits:
- Code 05-Knock sensor
- Code 13-Manifold absolute pressure sensor

If trouble code numbers are present, check for cause by referring to the specified diagnostic trouble code (DTC) check sequence.

Check powertrain control module engine (PCME) input signals from the following circuits:
- E/L, P/S, A/C, Coolant fan signals to the PCME
- Crankshaft position sensor (NE, signal)
- Manifold absolute pressure sensor
- Throttle position sensor
- Neutral SW / Clutch SW (MT)
- Park/Neutral signal (AT)

Verify correct terminal pin voltage at PCME terminal 3I
- Refer to PCME Pin Tests.

11. Disconnect the SST.




12. Verify that the ignition timing advances when the engine is above 1,500 rpm.

Idle Speed Inspection/ Adjustment
Because the idle speed is controlled automatically by the PCME, it is usually not necessary to check and adjust the idle speed control valve. However, if the engine is idling roughly, use the following procedure to make adjustments.
1. Perform "Preparation" steps 1 through 4.




2. Set SYSTEM SELECT to position 1
3. Set TEST SW to SELF TEST
4. With the coolant fan off, verify that the idle speed is within specification.

Idle speed: 700-750 rpm




5. If not within the specification, adjust the idle by turning the air-adjusting screw (AAS).
6. If not within the specification when air adjusting screw fully closed, loosen the locknut and turn the throttle adjusting screw to set the idle.
7. Tighten the locknut and put a paint mark on the nut and throttle body.
8. Disconnect the SST.