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Need rebuilt PCM/ none in stock
Vehicle is setting codes for all four O2S heater circuits. Another shop replaced all four with Bosch, Ford dealer reflashed, issue still remains. So here it is. Circuits test OK, PCM is not pulling circuit quite to ground, .15 - .25v, 1.6A cold, .9A hot. Seems... Login to read more. 
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| Engine | 4.6 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Mil Lamp On |
Vehicle Data
1998 Ford Expedition XLT 4.6L Mil Lamp On
| Engine | 4.6 L |
| Trans | 4-speed Automatic (Electronic) |
| Symptoms | Mil Lamp On |
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