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.
1988 Mazda RX-7 Base, 2D ConvertibleFACTORY OEM SERVICE PROCEDURE
Variable Resistor
Remove resistor connector. Note terminal identification. See Fig 1 . Using ohmmeter, check resistance at specified terminals. See VARIABLE RESISTOR RESISTANCE table. Replace resistor if not within specification.
NOTE:
Idle mixture must be adjusted if variable resistor is
replaced.
VARIABLE RESISTOR RESISTANCE
| Terminal | k/Ohms |
|---|---|
| A & C | .5-4.5 |
| B & C | .5-4.5 |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.