Hi,
Mine is a similar problem. Check engine light is on and the echeck guy said it would fail anywasy and asked me to get it checked. Took it to car dealer n he asked me to replace CAT and Sensors.I cannot afford that just to get the test passed as the car runs fine. Please tell me how to disconnect battery from the car for 30 mins so that i can do that n take it for echeck. Please respond. Car type:2000 mercury mystique.
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Thanks