I have a 2000 Ford Ranger with 95,000 miles and a 3.0 liter engine that has had an intermittent check engine light for the last few months. It will ocassionally idle rough and also have strong odor from the exhaust. It had the OBD codes checked and they came up with P0133, P1131, and P0171. These all seem to indicate a lean air/fuel mixture. I could not find any vacuum leaks. How can I diagnosis my problem?
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Sunday, June 24th, 2007 AT 10:09 AM