Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC1993JIMMY BASE, 2D UTILITY, 4.3 Z, RWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 4 (COMPUTER RELEARN PROCEDURES)RELEARN PROCEDURESTP SENSOR/IDLE LEARN (DEVILLE 4.9L)
1993 GMC Jimmy Base, 2D Utility, 4.3 Z, RWD, Standard
TP SENSOR/IDLE LEARN (DeVILLE 4.9L)
1993 GMC Jimmy Base, 2D Utility, 4.3 Z, RWD, StandardSECTION TP SENSOR/IDLE LEARN (DeVILLE 4.9L)
WARNING: This page does not describe the selected car, but rather 65 other vehicles, including the 1994 Saturn SW2, 1994 Saturn SW1, 1994 Saturn SL2, 1994 Saturn SL1, and 1994 Saturn SL. However, it is still accessible from the selected car via links, so may be relevant.
- Ensure outside air temperature is greater than 50°F (10°C) to allow operation of A/C compressor. Start engine and allow to idle for 13 minutes. With engine running, enter diagnostics. See G - TESTS W/ CODES - 4.9L article in the ENGINE PERFORMANCE section.
- Turn ignition off. Wait 20 seconds, then turn ignition on, with engine off. Reenter diagnostics. Repeat step 2).
- Turn ignition off. Wait 20 seconds, then start engine. Apply brakes and place transmission in Drive. Turn Climate Control Panel (CCP) to OFF position and allow engine to idle for one minute.
- Turn CCP to AUTO position and ensure A/C compressor engages. Allow engine to idle for one minute. Place transmission in Park and turn ignition off.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.