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ULEV code P1167 AF heater circuit (B1S1)
Helping a friend. We tested the complete circuit, all systems shows good. The PCM controls the ground for the heater circuit, but shuts off after about 10 seconds, then sets a code P1167 for AF sensor heater circuit malfunction (B1S1, air fuel ratio) but all m... Login to read more. 
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| Engine | 2.3 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Mil Lamp On |
Vehicle Data
1999 Honda Accord LX 2.3L Mil Lamp On
| Engine | 2.3 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Mil Lamp On |
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