OBD1 CODES CODE 40 Questions

1997 BMW 740 Code 40 And Code 45

1997 BMW 740

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Asked by nancine1

Code 40?

1994 FORD RANGER

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Asked by psh1

1999 Ford Taurus Misfire 303 And Lean Code 174 With...

1999 FORD TAURUS

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Asked by Davidandthekatrinacar

Codes 40, 21, 34, And 13?

1991 OLDSMOBILE CIERA

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Asked by Victoria Brown-McClure