P0171 Diagnostic Trouble Code Discussion for February 2017
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2008 Pontiac Grand Prix 3.8L Stall, MIL Lamp on, Erratic Tachometer VIN: 2G2WP55288 P0171: Fuel System Lean. Vehicle will randomly stall and immediately restart and run. Engine then runs rough with lean condition and associated misfires. After 3-4 minutes it will run normally. This may occur 5-10 times on owners 20 mile commute to work. At times, upon restart the tac... |
February 03, 2017 | |
| 2007 Chevrolet Colorado LS 2.9L MIL Lamp on VIN: 1GCDT19937 P0171: Fuel System Lean. after market engine sets p0171 lean code . intake system was smoke tested ,plastic air inlet chamber replaced with hose to valve cover,no more leak. fuel alcohol 10 percent.fuel pressure 60 psi idle with intermittent slight neddle bounce but holding pressure w... |
February 06, 2017 | |
| 2005 Ford Mustang 4.0L MIL Lamp on VIN: 1ZVFT84N75 P0171: lean bank 1. Hello Tech 19s, and thanks for reading this post. We have a hum dinger here, a 2005, 4.0l Ford Mustang. This vehicle came in to the shop with the check engine light on and two DTC 19s, PO171 and PO174. The freeze frame shows that the codes occurred at idle. Th... |
February 23, 2017 | |
| 2005 Ford Mustang 4.0L MIL Lamp on VIN: 1ZVFT84N75 P0171: lean bank 1. Hello Tech 19s, and thanks for reading this post. We have a hum dinger here, a 2005, 4.0l Ford Mustang. This vehicle came in to the shop with the check engine light on and two DTC 19s, PO171 and PO174. The freeze frame shows that the codes occurred at idle. Th... |
February 24, 2017 |
