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 MANUALSPORSCHE1982928 AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEFUEL DELIVERYFUEL INJECTION - BOSCH AFC - EUROPEAN MODELSTESTINGAIR FLOW METER POTENTIOMETER
1982 Porsche 928 Automatic Trans
Air Flow Meter Potentiometer
1982 Porsche 928 Automatic TransSECTION Air Flow Meter Potentiometer
NOTE:
Testing procedures not available for BMW, Porsche or Renault models.
Turn ignition switch off. Disconnect electrical connector from air flow meter and connect ohmmeter between terminals shown in table and note readings. If readings are not to specifications, replace air flow meter.
AIR FLOW METER RESISTANCE
| Terminal No. | Resistance (Ohms) | ||
|---|---|---|---|
| 6 & 7 | (1) 40-300 | ||
| 6 & 8 | 1 30-260 | ||
| 6 & 9 | 1 200-400 | ||
| 7 & 8 | 100-500 | ||
| 8 & 9 | 70-140 | ||
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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.