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.
Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor (LY7)
2008 Pontiac Grand Prix BaseSECTION Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor (LY7)
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor (LY7)
| Pin | Wire | Circuit | Function |
|---|---|---|---|
| 1 | 0.5 TN | 472 | IAT Sensor Signal |
| 2 | 0.5 PK | 339 | Ignition 1 Voltage |
| 3 | 0.5 BK | 2760 | Low Reference |
| 4 | 0.5 GY | 2709 | 5-Volt Reference 2 |
| 5 | 0.5 YE | 492 | MAF Sensor Signal |
Connector Part Information
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Terminal Part Information
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RENDER: 1.0x
NO RELATED
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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.