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.
1987 Mazda RX-7 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Airflow Measuring Plate
Using a screwdriver, depress measuring plate fully and measure resistance between terminals on airflow meter connector. See Fig 1 . Refer to AIRFLOW MEASURING PLATE RESISTANCE table for resistance values.
AIRFLOW MEASURING PLATE RESISTANCE
| Terminals | Ohms | ||
|---|---|---|---|
| E1 to Fc | |||
| Plate Fully Closed | Infinity | ||
| Plate Fully Open | 0 | ||
| E2 to Vs | |||
| Plate Fully Closed | |||
| Non-Turbo | 50-500 | ||
| Turbo | 200-600 | ||
| Plate Fully Open | |||
| Non-Turbo | 50-500 | ||
| Turbo | 20-1000 | ||
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.