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I have an 89 ford mustang gt with issues.
Car: Ford, Mustang GT, 1989, 5.0 Back to question page
Question:I have an 89 ford mustang gt with issues. I have pulled the fault codes and they are as follows. 15 51 22 53 54 67. These are the ON DEMAND codes, key on engine off. The code reader says I have to fix these codes before moving on. Code 15 is a failure in the electronic control assembly. Does this mean my ECA is toast? Car was running great then things went down hill so i pulled the codes. How do I deal with the code 15, is it fixable. There is a lot more to this car but for now I just want to know how to procede. The check engine light has never come on before and the computer is the stock EEC-IV OBD1 A9S.
