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.
1990 Suzuki Sidekick JSFACTORY OEM SERVICE PROCEDURE
TPS Inspection
- Disconnect TPS harness connector and throttle opener vacuum hose. Using hand vacuum pump, apply 15 in. Hg vacuum to throttle opener to move throttle lever to idle position. Using ohmmeter, check continuity between upper and lower terminals. See Figure . See THROTTLE POSITION SENSOR (TPS) RESISTANCE table.
- If TPS sensor cannot be adjusted to obtain the correct values at idle, replace TPS sensor.
Factory Service Tools
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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.