Passat (B5) :: Check Engine Light Came On - Code P0171 / Fuel System For Bank 1 Was Too Lean
We have a 2003 Passat 1.8t. Had the Check engine Light come on. Went down to AutoZone and hookeded up the OBDII reader. Came up with P0171, Fuel System for Bank 1 was too lean. Probable causes:
1. Fuel Pressure of MAF (If Bank 1 & Bank 2 set codes together)
2. O2 Sensor
3. Ignition Misfire
4. Fuel Injector Problem
Car has 60K - has always run well. Wife says she thinks it's running a bit sluggish. I rarely drive the car, but I think she's right. Car is not missing or running rough.
I cleared the code & started the engine; Check Engine Light is off; then looked at the codes and I find a P0171 (Pending). She tells me that the light has been on before & then gone away. So I guess it clears itself, but eventually comes back.
Toyota - Corolla - Fuel-economy :: 2005 - P0171 Check Engine Code / System Too Lean
I have an 05 Toyota corolla, and have the check engine light on, I scanned it at autozone and error code is P0171 - System Too Lean (Bank 1). Which shows following possible causes: Faulty MAF, O2, fuel injectors blockage etc. On recommendation from the guy in autozone, I added fuel additive to clean the fuel line/ injectors. The check engine light went away for 9 months. But it is back on again. Tried putting in fuel additive again but the light remains on.
View 5 RepliesFord F-150 - 1997-2003 :: 1999 - Check Engine Light Codes P0171 And P0174 Lean On Bank 1 / 2
I have a 99 f150 with the 4.2l v6 with a 5 speed 173000 miles. I picked it up not to long ago. When I first got it it had both the P0171 & P0174 lean on bank 1&2 it was also siting for a while. I replaced the fuel filter which was filled with black fuel, also changed the PCV valve, cleaned the MAF sensor, and changed the oil. I cleared the code, drove it for a little bit and the light came back on after 20 miles.
I then proceeded to replace the upper and lower intake manifold gaskets. Upon doing that i noticed that i was missing one of the linkages for the IMRC. I went to the junkyard and pulled off another linkage rod off the same motor. ordered new plastic clips, put the IMRC on cleaned everything up and began putting it back together. I also cleaned the Injectors while i had them out as well and put in new spark plugs and wires.
Put everything back together. code was cleared since the battery was disconnected. drove it and then the engine light came back on again. this time it was only the p0174. so i then both the upstream and downstream O2 sensors on bank 2, reset the code and it came back on again. I'm lost.
Passat (B6) :: 2006 Check Engine Light On - P0171 Lean Air Fuel Mixture
I have had 06 passat with a 2.0 turbo. It been a great car. check engine light has come on with a few codes.
P0171 lean air fuel mixture. P2015, p2008, p0507, p2015, p2008.
Ford F-150 - 1997-2003 :: 1999 - Check Engine Light Came On / Code P0171 / System Too Lean Bank 1
I just bought a 99 f150 and the check engine light came on with code p0171,system too lean bank 1. It runs and drives fine but has a strong smell of gas when I shut it off.
View 4 RepliesSanta Fe (CM - 2007-12) :: Codes P2187 And P2189 After Replacing Fuel Level Sensors
So a couple days ago i replaced the fuel level sensors in my 07 gls 2.7 liter santa fe and all was well for 2 days. I had finally driven it enough that the codes cleared from active status and the car turned off the cel. However, during the same ignition cycle the engine started missing a bit and the cel came back on and started flashing at me. Codes found now are p2187 lean bank one and p2189 lean bank two, plus p0302 misfire detected cyl 2. I've tried the carb cleaner trick looking for a vacuum leak.. but no luck. Air intake boot is good vacuum lines look good etc. What might be going on? Did i get debris in the tank and glog an injector with it? Fuel pump itself appears to be operational. No bogging down or loss of power under heavy acceleration.
View 1 RepliesLexus - RX300 :: 2000 - Check Engine Light Code P0171 Bank 1 Too Lean
2000... I have a code P0171 bank 1 too lean. My question is does this exclude anything that will effect both banks? If it was MAF sensor or fuel filter would it set code and say banks 1 and 2 running too lean? In which MAF sensor ohms out correctly. I cannot view fuel trim files. I have looked for a vacuum leak with no luck. I got some cigars to try to smoke it to see if there is any vacuum leaks. Trying to narrowing what i need to checks.
View 19 RepliesChevrolet - Trailblazer :: 2006 - Check Engine Light Code P0171 - Lean Bank 1
I have a 2006 Chevy Trailblazer LS/LT 4.2 liter 2wd. I have been trying to get it smoged, but can't clear the code. P0171 - Lean Bank 1.
I've been having a parts throwing contest with it, but it has been winning and my wallet is losing.
I have changed the air filter, cleaned the MAF sensor, changed both O2 sensors, changed the secondary air valve and relay. I've done the carb cleaner spray test around the intake and vacuum lines, with no spikes in RPM.
Most recent try was a couple bottles of Techron concentrate with premium chevron gas.(still waiting to see if the code hits again)
Next steps are checking the intake bolts(to see if they are torqued) and intake gaskets, check for exhaust leaks at the exhaust manifold, and checking the MAP sensor.
Freeze frame data from the most recent hit on the code is below.
***Fuel system 1 - CL***Fuel system 2 - NA***Calc Load(%) - 30.2***ECT(deg c) - 48***STFT B1(%) - 3.9***LTFT B1(%) - 22.7***MAP(kPa) - 33***Eng RPM - 809***Veh speed(km/h) - 0***Spark Adv (deg) - 10.5***IAT(deg c) - 20***MAF (G/s) - 5.82***TPS(%) - 15.3***Air status - NA.
Subaru - Outback :: Off - Idle Stumble / Check Engine Light P0171 (lean) Or P0420 (cat)
My 2007 Outback has had an off-idle stumble since I bought it a year ago. Otherwise runs well and uses less gas than the 2000 Forester it replaced. I've had a smoke test done, cleaned the throttle body, replaced front oxy sensor, and used a variety of gas treatments. I don't trust the local Subaru dealer to work on my car and my local garage has run out of ideas, but suggested MAF sensor may work. Some days it runs better than others. Occasionally I'll see a check engine light P0171 (lean) or P0420 (cat) but it will go weeks between setting those.
View 9 RepliesSanta Fe (CM - 2007-12) :: 2008 - CEL On / Fuel Trim System Lean At Idle
I just got this 2008 santa fe a month ago from the dealer with 80.000 miles , and then yesterday the check engine light came on, i took it to auto zone and the put the computer and this 2 codes came up:
P2187
Fuel trim system lean at idle
explanation
the average long term fuel trim values at idle are more than 30% for 10 seconds
probable cause
- low fuel presure
- failed MAF sensor
- large vacuum leak
- cylinder misfire due to ignition system failure
P2189
System too lean at idle bank 2
explanation
failed MAF
probable cause
- low fuel presure
- vacuum leak on engine
- failed HO2S ( heated oxygen sensor-bank2 )
Passat (B6) :: 2007 - Error Code Of P0171 System Too Lean
I have an 07 passat with a 2.0 4 cyl turbo and I have an error code of P0171 system too lean (bank1) but engine seems to run just fine, what this code means, am wondering if it is something I can fix or if it needs to go to the shop??
View 2 RepliesSanta Fe (CM - 2007-12) :: How To Obtain Check Engine Light Codes
My 2008 just showed the light at 108,000 kms. Its a long drive to the dealers. My old Hondas would flash a code number in the instrument cluster if I shorted out a pin under the dash. Is there a way to do this with the Fe?
View 6 RepliesPassat (B5) :: 2001 - MIL Light On With DTC Code P0171 Lean System
I have a 2001 Passat 1.8T that has the pesky MIL light on with a DTC code P0171 lean system. I have sent it to the mechanic many times to no avail. What the mechanic did was replacement of the MAF, O2 sensors, checked intake manifold leak as well as exhaust manifold leak. His last attempt was to check for clogged injectors and fuel filter and they were in good condition. He says the ECM is bad. I was able to retrieve freeze frame data as well as live data which shows that the computer is compensating what it thought was lean by having very positive LTFT of 22.6. I don't believe the ECM is bad but cannot be sure. There is one more thing that was not checked by the mechanic is the EGR valve. Could that be the cause of my woes - the lean system?
View 14 RepliesPassat (B6) :: Check Engine Light - Codes P0100 And P0171
Check engine light came on yesterday evening. Advance read the codes as P0100 and P0171. The guy said something that it may be related to the mass air flow sensor. The car seems to run fine.
View 2 RepliesSanta Fe (CM - 2007-12) :: Check Engine Light Comes On With P2127 And P2106 Codes
I have been having this same problem over and over again. Check engine light comes on with P2127 and P2106 codes. 1st time they said they needed to flash the computer. Worked fine for maybe 6 months and then again. While this is happening you cant go over 2500 rmp with it floored and takes forever to get up to 60-80 kph which is the fastest it will go. Sometimes after starting stopping 5-8 times it will be fine. The second time they replaced the gas pedal because the sensor was deemed bad. Now about 8 months later here up it comes again. This time I was pulling my boat and I thought I wasn't going to make it up the hill. I don't trust this car anymore especially for long trips. So anyway they updated the computer again, and then 4 days later up it comes again. Also inner tie rod ends I have replaced 3, just so you know I only have 52000 kms on this 2008.
View 10 RepliesSanta Fe (CM - 2007-12) :: Check Engine Light Went On - Error Codes P0021 And P0022
2 error codes? Car runs fine - nothing seems wrong - the check engine light went on, so I pulled out the scanner which came up with the 2 codes: P0021 and P0022.
View 8 RepliesFord Excursion :: Check Engine Light Illuminated For Codes P0171 And P0174
Coming home from spring break towing the TT, the Check Engine light illuminates. Seems to be sputtering at idle, but otherwise OK, so we continued home.
Scanner lists the P0171 and P0174 codes. Ok, where to begin? based on internet info, started by cleaning the MAF sensor and throttle body. When I pulled apart the intake, noticed that the grommet which feeds the MAF in the air intake had become separated letting air bypass the MAF. Hence the reason for the codes.
If you get these codes, check the grommet for the wires feeding the MAF in the air intake to make sure it hasn't become separated from the intake. No more codes.
Passat (B5) :: Check Engine Light Coming On - System Too Lean?
I recently had some work done on my 2001 1.8t Passat. All new vacuum hoses & camshaft tensioner replaced by VW dealer. Check engine light is coming on and an independent shop near read out a code: Bank 1 mixture adaptation(multi): System too lean.
What does this mean??? And could this relate to these parts being replaced??? Work was done approx 2000 miles ago.
Santa Fe (CM - 2007-12) :: Check Engine Light Comes On - Fuel Gauge Fluctuating
I have an 08 Hyundai Santa Fe. Check engine light comes on, fuel gauge goes from empty to full, to half, to 1/4, just all over the place. Even ran out of gas a few times on the side of the road not knowing how much fuel I have.
What exactly causes this problem? I've heard "fuel sender" I've heard "fuel pressure sensor" etc. All are different parts. Need to get this repaired asap.