How to reset or repair OBD Codes 171 & 174 System too lean Bank 1 and Bank 2

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I can clear the service engine soon light but it comes right back. What does sytem too lean actually mean?

Aug 10, 2011

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What are the best Chevrolet repair shops?

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Tuffy Tire & Auto Service Center - Grandview

4.7

(85)

2.39 mi

1524 W 5th Ave

Columbus, OH

Closed

Opens 8:00 AM Sat

Call

Excite Auto Repair & Towing

4.4

(15)

5.94 mi

3430 Westerville Road

Columbus, OH

Closed

Opens 9:00 AM Mon

Call

All In Auto Service

4.7

(30)

6.56 mi

5200 Fisher Road

Columbus, OH

Closed

Opens 8:00 AM Mon

Call

Tuffy Tire & Auto Service - Grove City

4.4

(523)

6.67 mi

2131 Stringtown Rd

Grove City, OH

Closed

Opens 8:00 AM Sat

Call

Blackstone Complete Auto Care

(39)

6.77 mi

4800 Sinclair Road

Columbus, OH

Closed

Opens 9:00 AM Sat

Call

Boyd's Tire & Service - Columbus

4.7

(189)

7.23 mi

5263 Godown Rd

Columbus, OH

Closed

Opens 8:00 AM Sat

Call

See All 30 Locations

Tuffy Tire & Auto Service Center - Grandview

4.7

(85)

2.39 mi

1524 W 5th Ave

Columbus, OH

Closed

Opens 8:00 AM Sat

Call