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Audi Q3: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Audi Q3.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more

Audi Q2: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Audi Q2.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more

Audi TT: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Audi TT.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more

Audi A5: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Audi A5.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more

Audi A4: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Audi A4.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more

Audi A3: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Audi A3.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more

Audi A1: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Audi A1.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more

Ford Crown Victoria: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Ford Crown Victoria.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same … Read more

Hummer H3: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Hummer H3.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more

Hummer H2: P0171 and P0174 Diagnosis

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P0171 and P0174 both indicate that there is a lean condition present in your Hummer H2.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more