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Running rich
I have one that came in the shop with every sensor under the hood changed. Scan data show it running rich. Oxygen sensor is pegged rich and injector pulse at idle is between 8 and 9 milliseconds. Stuck in open loop. Map sensor is accurate as well as air and co... Login to read more. ![]()
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Login to read this message and participate Auto Repair Pros: Join iATN to read this message and others Vehicle Owners: Find a nearby iATN member to repair your vehicle 73 Replies Received (View Replies)73 Replies Received (Hide Replies) |
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| Engine | 5.0 L |
| Trans | 4-speed Automatic (Electronic) |
Vehicle Data
1991 Ford Bronco XL 5.0L
| Engine | 5.0 L |
| Trans | 4-speed Automatic (Electronic) |

73 Replies Received
73 Replies Received