installed #2 cyl. coil and started engine and got 1131 and 1151 codes. whats the fix
Aug 20, 2010 at 6:30 AM
1998 Ford Expedition obd codes 1131 and 1151
ENG961
- MEMBER
- 16 POSTS
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It can mean you need new O2 sensors, both front sensors are stuck on lean, and not switching as they should, or you have a major vacuum leak. Air duct back in place? Also possible the fuel pump is on the way out.
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Aug 20, 2010 at 6:57 AM
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