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P0171 Diagnostic Trouble Code Discussion for November 2017

Fuel System Lean (Bank 1)


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Trouble Ticket Help Requests for DTC P0171
Help Request Posted
2009 Nissan Quest 3.5L MIL Lamp on VIN: 5N1BV28UX9
P0171: system too lean. ... code p0171, we replace maf sensor and a/f sensors both banks, we have not vacuum leaks,short fuel trim are +25 long fuel trim sometimes stays +15 at idle, fuel pressure 52 psi
November 02, 2017
2000 GMC Sierra 2500 SL 6.0L Poor Idle Quality VIN: 1GTFC29U6Y
P0171: Fuel Trim System Lean (Bank 1). Long time listener first time caller. Truck came in with cel and poor idle. Found lean codes for both banks. Fuel trims at idle LT at 25 ST at 50. Increase in throttle brings fuel trims back close to normal. Smoked the intake through fuel regulator hose. Only ...
November 06, 2017
2009 Honda CR-V EX 2.4L MIL Lamp on VIN: 3CZRE48569
P0171: lean b1. sets lean code after extended idling period. if idles in bay for 45 min or so trims will climb up to 35-45 stft and 25ltft. off idle it does come down to 15stft and 10ltft. smoke tested intake and crankcase. checked v/e with ats escan, calculated and actual ab...
November 07, 2017
2013 Nissan Juke S 1.6L MIL Lamp on VIN: JN8AF5MR3D
P0171: Fuel System Lean Bank 1. ... a bank that was a repo for an engine replacement. The old engine was ran out of oil and grenade. We replaced the engine with a salvage yard engine. A few days after replacement the car came back with a p0171 fuel system lean bank 1 code. After diagnosis we...
November 10, 2017
2013 Nissan Juke S 1.6L MIL Lamp on VIN: JN8AF5MR3D
P0171: Fuel System Lean Bank 1. ... a bank that was a repo for an engine replacement. The old engine was ran out of oil and grenade. We replaced the engine with a salvage yard engine. A few days after replacement the car came back with a p0171 fuel system lean bank 1 code. After diagnosis we...
November 13, 2017
2002 Saturn Vue 3.0L Poor Idle Quality, MIL Lamp on VIN: 5GZCZ63B82
P0171: Fuel Trim System Lean (Bank 1). Hello everybody! I have a customers 02 Saturn View 3.0 out in the shop that has turned into a nightmare. It came in for front wheel bearings and a muffler with a
November 19, 2017
2002 Saturn Vue 3.0L Poor Idle Quality, MIL Lamp on VIN: 5GZCZ63B82
P0171: Fuel Trim System Lean (Bank 1). Hello everybody! I have a customers 02 Saturn View 3.0 out in the shop that has turned into a nightmare. It came in for front wheel bearings and a muffler with a
November 20, 2017
2001 Ford E-350 Econoline Club Wagon XLT 5.4L Poor Idle Quality, Hesitation, Stall VIN: 1FBSS31L81
Van came in on trailer by cust, runs real bad cold starts and dies three or four times and then runs rough for about ten min. won't take fuel pops and bogs. After gets hot will take gas slow and idle good can road test still won't take fuel fast. Fuel pres...
November 30, 2017
2012 Volkswagen Passat SE 2.5L No Start, Hesitation VIN: 1VWBP7A3XC
P0171: Lean on bank one. Vehicle came in with a check engine light and running rough at idle. Discovered that the PCV oil separator was leaking from the diaphragm on the valve cover. Removed and replaced valve cover and gasket. Proceeded to start the vehicle after repair and now i...
November 30, 2017