po141 and po136
have a 97 ford f150 4.6 just bought .keep getting 141 and 136 codes.Replaced o2 sensor 2 times still getting codes.what do i need to check.I think 136 means heater circuit but what do u check any help would be greatly aprieciated
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fordexpedition2006
Ford Expedition
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Jan 22, 2011 06:06 AM



