Question about 2004 Lexus RX 330

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I have a TDC p0171, system to lean, is that a O2 sesor problem??

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  • Lexus Master
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Yes , but no fatal, try to reset, remove EFI fuse several seconds with engine of

Posted on Jul 16, 2010

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Hi i have a 2002 ford ranger and it has teas codes P0446 P0135 P0141 P2195 P0403 P0171


P0446: EVAP System Vent Control Circuit http://www.autocodes.com/p0446_ford.html

P0135: O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
P0135 Ford O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1

P0141: O2 Heater Circuit Bank 1 Sensor 2
P0141 Ford O2 Heater Circuit Bank 1 Sensor 2

P2195: Oxygen Sensor Signal Biased/Stuck Lean - Bank 1 Sensor 1
http://www.autocodes.com/p2195_ford.html

P0403:Exhaust Gas Recirculation Control Circuit http://www.autocodes.com/p0403_ford.html

P0171: Fuel Injection System Too Lean Bank 1 http://www.autocodes.com/p0171_ford.html

Nov 15, 2016 | 2002 Ford Ranger

2 Answers

What does code P0171 mean on a 98 grand Cherokee Laredo?


Fuel system too lean, usually caused by a leaking vacuum hose or intake gasket. Could also be a faulty o2 sensor. Good luck

Jun 19, 2014 | 2001 Lexus RX 300

1 Answer

07 Kia Spectra Code P2626, P2097, P2271, P0171


P0171 System too Lean (Bank 1)
P2097 Post Catalyst Fuel Trim System Too Rich
P2271 O2 Sensor Signal Stuck Rich
P2626 O2 Sensor Pumping Current Trim Circuit/Open
_____________
FGTech Galletto 2

Jan 26, 2013 | 2007 Kia Spectra LX Sedan

1 Answer

I have gotten the codes p0171 and p0134 what are they


P0171 indicates system lean (bank 1). P0134 indicates no activity from sensor 1 on bank 1. You could have a bad O2 sensor or an actual lean condition. Possible causes of a lean condition include a restricted fuel filter on a vacuum leak.

Jun 02, 2011 | 2000 Nissan Maxima

2 Answers

I have a 98 Ford Contour and these codes. - P0708, P0171, P0442


p0708 is transmission range sensor curcuit high output, p0171 is system to lean ( bank 1 ), p0442 is EVAP emission control leak ( small ).

Mar 20, 2011 | Ford Contour Cars & Trucks

1 Answer

P0137 p0171 p0174


P0137 o2 circuit low voltage bank 1 sensor 2 --o2 sensor after the cat converter -check for faulty o2 sensor -short or open circuit exhaust leak near sensor or plugged cat converter ----P0171 and P0174 -system too lean bank 1--and system too lean bank 2 they are usually from the same problem which can be caused from the o2 problem but check ur maf sensor connections and or clean if necessary[carb cleaner] vacuum leak downstream from maf sensor also inspect pcv lines

Feb 16, 2010 | 2003 Chevrolet Silverado 1500

2 Answers

Codes P0171, P0174, P0440


This is usually an oxygen sensor, replace the O2 sensor located above the catalytic converter before replacing the evaporator purge canister.

Dec 29, 2009 | 2000 Chevrolet Silverado

1 Answer

I am getting a p0171 code on my 2005 volkswagon passat what does that mean


P0171 - Fuel Trim, Bank1 System too Lean
VW DTC 16555 (P0171) - Fuel Trim, Bank1 System too Lean
By only pulling battery power from the ECU doesn't clear the codes on OBDII systems.
You must have access to a VAS, VAG-COM, Bosch KTS, ... diagnostic scantool. The ECU (Electronic Control Unit for engine management) is seeing a fuel trim that's much too lean even with the ECU making adjustments. Colud be the MAF (Mass Air Flow) sender out of order, the pre-cat O2 sensor, or a significant vacuum leak. You need to confirm / deny working parts with a 2nd gear pull data-logging measuring blocks 002, + 032 (VAS, VAG-COM).

Dec 09, 2009 | 2005 Volkswagen Passat

2 Answers

4 codes P0171,P0174,P2195,P2197


Hi
171 system too lean
174 system too lean
2195 - 02 ozygen sensor signal stuck lean Bank1 Sensor 1
2197- 02 ozygen sensor signal stuck lean Bank 2
Sensor 1
The 2 front 02 sensors are located on the front of
the exhaust manifold.
Should solve problem and increase gas mileage.

Apr 01, 2009 | 2003 Ford Expedition

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