P0171 Diagnostic Trouble Code Discussion for May 2007
Fuel System Lean (Bank 1)
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| Help Request | Posted | |
| 1996 Ford E-150 Econoline 5.0L MIL Lamp on VIN: 1FDEE14H4T P0171: Lean Bank 1. ... illuminated. A quick scan revealed an intermittent MAF code, as well as the dreaded P0171/P0174 codes. Tapping the MAF with the butt end of a screwdriver induced the van to stumble, so I brought a recommendation to the custome... |
May 04, 2007 | |
| 1999 Ford Windstar SE 3.8L MIL Lamp on VIN: 2FMZA5242X P0171: lean bank 1. Hi all need help on this windstar. replaced plenum o_rings, bolts and fuel pressure vacuum line as per tbs 8,000 miles ago for these codes now back again with same codes. Data shows at idle both rear O2's stay rich. Checked for vacuum leak none found. Cleaned ... |
May 04, 2007 | |
| 1995 Buick LeSabre Custom 3.8L Stall VIN: 1G4HP52L75 P0171: Fuel trim lean. ... Buick. According to the owner this has been stalling intermittently for quit a while but it always starts back up immediately. They took it to a dealer a while back and he said they replaced a "wire on top of the engine". I'm assuming a plug wire. ... |
May 05, 2007 | |
| 2001 Volkswagen Passat GLS 1.8L MIL Lamp on VIN: WVWHC63B11 P0171: bank 1 system too lean. customer returned vehicle complained of mil on.scanned for dtc's p0300,p0302,po171 present.visual inspection found vacuum hoses leaking,replaced hoses,cleaned maf sensor,checked fuel pressure ok .air filter,fuel filter new.cleared codes,road tested no missfire... |
May 07, 2007 | |
| 1995 Jaguar XJ6 4.0L MIL Lamp on VIN: SAJHX1746S P0171: Bank 1 Lean. This one has me stumped. MIL is on with code for bank 1 lean. Looking at Oxygen sensors on labscope it appears that B1 S1 sensor is mostly stuck rich (flat-line at about 100 mV.) It will go lean (approx. 4.80 V.) when secondary air pump runs or when I blip the... |
May 08, 2007 | |
| 2000 Nissan Maxima GLE 3.0L Poor Idle Quality, Hesitation, Surge, Stall, MIL Lamp on VIN: JN1CA31A4Y P0171: Fuel Trim Lean (Bank 1). Dear Members, This 2000 Nissan Maxima starts fine and idles ok but no power at all. When I pinch fuel return hose (fuel pressure gage reads 70 p.s.i), then engine will rev up and Maxima is drivable. Replaced with known good MAF, no difference. Remove fuel pump... |
May 09, 2007 | |
| 2003 Ford Ranger Edge 3.0L Hesitation, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTYR14V03 P0171: Fuel Trim Too Lean Bank 1. Guys( I need HELP! This vehicle came in with several codes, the misfire codes being the major complaint. With the codes that were there I started with the injectors... they were fine, even changed with known good injectors with no change. Also there is a strng... |
May 14, 2007 | |
| 2000 Ford Taurus LX 3.0L Misfire VIN: 1MEFM55S2Y P0171: bank 1 lean pending only. ... not a taurus, but o well. i've already replaced the injector and ign coil for this cyl, and swapped plugs between cyls, to no improvement. my problem is that the car sets a p0304 (cyl 4 misfire) and has a lean code p0171 (bank 1 lean) that is pending. the ... |
May 15, 2007 | |
| 2003 Ford Ranger Edge 3.0L Hesitation, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FTYR14V03 P0171: Fuel Trim Too Lean Bank 1. Guys( I need HELP! This vehicle came in with several codes, the misfire codes being the major complaint. With the codes that were there I started with the injectors... they were fine, even changed with known good injectors with no change. Also there is a strng... |
May 15, 2007 | |
| 2002 Toyota Celica GT 1.8L MIL Lamp on VIN: JTDDR32T9Y P0171: Fuel System Too Lean (Bank 1). suspect intake gsks hi idle cold thanks for help |
May 15, 2007 | |
| 2000 Nissan Maxima SE 3.0L Hesitation, MIL Lamp on VIN: JN1CA31DOY P0171: Fuel Trim Lean (Bank 1). veh. keeps setting po171 code at 60mph factory pids checked oem and obdII generic, all pids checked good. after 2 attempts to fix po171 with o2 sensor,inj serv. , new o2 and intake plenum gasket. customer revealed hesitation rough run in am or after long sit s... |
May 16, 2007 | |
| 2004 Jaguar XJ8 4.2L Hesitation, Misfire, MIL Lamp on VIN: SAJWA71C84 P0171: Fuel System Too Lean Bank 1. ... one. HISTORY : 01/062004.Vehicle was damaged while being delivered with 3 miles on the clock in Newark NJ.. Damage confined to the rear trunk area. Vehicle repaired . 03/04/2004 Mileage 20. Vehicle Serviced. 03/04/2004 Vehicle in Dealer Inventory. 03/30/2... |
May 18, 2007 | |
| 1998 Ford E-150 Econoline 4.2L MIL Lamp on, Spark Knock VIN: 1FTRE1423W P0171: Bank 1 System too lean. This van came in about six months ago with a check engine light on and customer complaint of a spark knock. Vehicle had no drivability problems. Retrieved codes PO171 & PO174. The Baro PID. was 142 Htz. For the area that we are in, that is way below the ex... |
May 29, 2007 | |
| 2000 Lexus RX300 3.0L Hesitation, MIL Lamp on VIN: JT6HF10U8Y P0171: lean bank one. po 171 stores regularly with in 4 drive cycles on hevy accel bank one fuel trim is -11-12% at idle. car hesitates bad on heavy accel it doesnt seem to be misfireing. on moderate accel it runs great. fuel pressure doesnt drop off. no ign miss stored. im confuse... |
May 30, 2007 |
