P0171 Diagnostic Trouble Code Discussion for May 2017
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 2005 Ford Five Hundred Limited 3.0L MIL Lamp on VIN: 1FAHP28155 P0171: Lean Bank one. Checked over previous work, inspected for any vacuum lines left disconnected. Also sprayed entire intake area to look for vacuum leak. Found no change in RPM or O2 sensor readings. Check fuel rail pressure and found normal at idle, using IDS found pump running... |
May 02, 2017 | |
| 1999 Chevrolet K1500 Suburban 5.7L MIL Lamp on VIN: 3GNFK16R2X P0171: Fuel Trim System Lean (Bank 1). light on p0171, p0174 adding 25 % both banks at idle. adding 18% both banks at cruise. 60 psi fuel pressure. new mass air flow. smoke test found no vac leaks. if i add carb cleanner o2s respond and fuel trims drop. cleaned fuel injectors with top engine cleane... |
May 08, 2017 | |
| 2008 Honda Fit Sport 1.5L No Start, Stall, MIL Lamp on VIN: JHMGD38648 P0171: Fuel metering too lean. Car came in for starting and dying. MIL was illuminated with lean code. Checked for vacuum leaks, fuel pressure, and spark. Found fuel pressure around 50 PSI cranking and no start condition. At first, it was starting and running for ten or fifteen seconds, the... |
May 11, 2017 | |
| 2008 Honda Fit Sport 1.5L No Start, Stall, MIL Lamp on VIN: JHMGD38648 P0171: Fuel metering too lean. Car came in for starting and dying. MIL was illuminated with lean code. Checked for vacuum leaks, fuel pressure, and spark. Found fuel pressure around 50 PSI cranking and no start condition. At first, it was starting and running for ten or fifteen seconds, the... |
May 12, 2017 | |
| 2001 Ford Ranger Edge 4.0L Poor Idle Quality, Misfire VIN: 1FTZR15E31 P0171: bnk 1 lean. ... one. Truck came in MIL is on runs rough at idle worst cold, pulled codes P0301 and a P0171. First inspection identified plug wires arcing on several wires and found multiple locations on cyl #1 wire that had electrical ta... |
May 18, 2017 | |
| 2008 Pontiac G6 GXP 3.6L Poor Fuel Economy, MIL Lamp on VIN: 1G2ZM17748 P0171: lean bk1. Customer complaint of lack of power and poor fuel economy. Upon scanning computer the above codes were found. I ckd scan data and according to the info everything looked good. I did visual on connections of cam sensors and solenoids. All looked good. I cleared... |
May 18, 2017 | |
| 2008 BMW 535xi 3.0L MIL Lamp on VIN: WBANV935X8 P0171: Lean bank 1. ... diag ck engine mil. Available scan tool Modis ultra and Mitchell for shop info. Initial scan finds P0171, viewing actual value data in Global obd finds both banks to indicate lean condition although no code stored for bank 2 as it is borderline. Adding pro... |
May 22, 2017 | |
| 1999 Ford Expedition Eddie Bauer 5.4L MIL Lamp on VIN: 1FMPU18L3X P0171: fuel system too lean B1. This is kicking my butt. Vehicle came in with both banks lean and #3 misfire codes. Forgive me but I forgot to print my fuel trims at the time, but they were in the teens. Found the engine oil cap missing. So I installed one and fuel trims got a lot better. Bu... |
May 24, 2017 |
