Question about 1996 Dodge Caravan

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My check engine on 2001 grand caravan went on before emmission test but went off after a day, but i failed the test. Driving from the test it went on again. Mechanic checked the code and gave me explanation: "diagnose engine light on. found dtc p0171 1/1 fuel system to lean primary o2 sensor failing requires new o2 sensor". I changed the sensor but it did not help.

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You need to have your computer cleared of all errors after the problem has being resolved. this can only be done with a scan tool. until this is done ur car may still run poorley

Posted on May 02, 2010

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