1989 Engine Code
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1989 Engine Code
I have a 1989 Ford F150 with a 300 CI with 5 speed trans. I just checked the engine codes and receive a code of 678. Does this seem right and if so do you know what this code means. Any help would be helpful thanks alot to you all. Eric
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Joined: Nov 2007
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From: Denver Metro Area, CO
I don't believe that's a valid OBD1 code.
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