TL L5-2451cc 2.5L SOHC G25A4 FI (1995)
Throttle Body: Testing and Inspection
CAUTION: Do not adjust the throttle stop screw. It is preset at the factory.
1. Disconnect the vacuum hose from the top of the throttle body; connect a vacuum gauge to the throttle body.
2. Start the engine. Hold the engine at 3,000 rpm with no load (transmission in (N) or (P) position) until the radiator fan comes on, then let it idle.
3. Allow the engine to idle, and check that the gauge indicates no vacuum.
If there is vacuum, check the throttle cable.
4. Check that vacuum is indicated on the gauge when the throttle is opened slightly from idle.
If the gauge indicates no vacuum, check the throttle body port. If the throttle body port is clogged, clean it with carburetor cleaner.
5. Stop the engine, and check that the throttle cable operates smoothly without binding or sticking.
If there are any abnormalities in the above steps, check for:
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Excessive wear or play in the throttle valve shaft.
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Sticky or binding throttle lever at the fully closed position.
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Clearance between throttle stop screw and throttle lever at the fully closed position.
Replace the throttle body if there is excessive play in the throttle valve shaft or if the shaft is binding or sticking.
