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 MANUALSMAZDA1991RX-7 BASE, 2D COUPE, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTSIDLE SPEED CONTROL (ISC) SYSTEMACCELERATED WARM-UP SOLENOID VALVE
1991 Mazda RX-7 Base, 2D Coupe, Automatic
Accelerated Warm-Up Solenoid Valve
1991 Mazda RX-7 Base, 2D Coupe, AutomaticSECTION Accelerated Warm-Up Solenoid Valve
- Disconnect air by-pass solenoid valve connector. Using ohmmeter, check resistance between solenoid valve terminals. Resistance should be 9.3-11.3 ohms.
- Apply battery voltage and ground to valve terminals. Listen for operating sound from valve. Replace valve if resistance is not within specification or no operating sound exists.
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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.