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Code 171 I'm getting Sevice engine light

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Hi.04 mitsubishi galant have problem my sevice engine light remains on.i have code p0132 and car when it get hot runing rough. thank you


your o2 sensor bank 1 is bad . you may want to replace it. It will probably solve your problem but make sure your maintainance is up to date fuel filters air filter plugs and wires. If this was helpful please leave good feed back

Feb 18, 2015 | 2004 Mitsubishi Galant

1 Answer

Need help with codes 300, 301, 306 and 171


Well code 300 is a random miss, 301 is for cylinder 1 and 306 is for cylinder 6. Code 171 is saying the fuel mixture on bank one is too lean. And that could cause the other codes.
Have you checked fuel pressure and the filter ?

Jan 31, 2014 | 1999 Toyota 4Runner

1 Answer

Check engine lights on code po 171 toyota matrix 2007


There are two common things that cause this code. The first is a dirty MAF sensor. The sensor is located on the side of the air filter cover. It can be removed and visually checked for dirt/debris. If it is dirty it can be cleaned with MAF sensor cleaner. The second is leaking intake manifold gaskets. The engine will need to be cold and a smoker will be needed to check them. The good news is the parts are cheap and they can be done in less that an hour.

Apr 06, 2013 | Toyota Matrix Cars & Trucks

1 Answer

Why the check engine light comes on and off runs great


The check engine light is on to tell you the computer has found a problem that will affect performance, gas mileage, or emissions.
Such as the code 171 you asked about.
Code 171 is for the fuel mixture on bank one being too lean. The O2 sensor is telling the computer the fuel mixture is too lean and the computer can not make it rich enough.

Dec 13, 2012 | 2003 Toyota Highlander

1 Answer

2006 xj8 code po 171 engine light is on


Lean report from right side bank #1 oxygen sensor

Replace both sides upstream sensors if over 100,000 miles

They slow down & set a mil lamp

Leave the rear monitors

Dec 02, 2012 | 2001 Jaguar XJ8

2 Answers

Code PO 171


http://www.automotiveforums.com/t473813.html

PO 171 is a system to lean code. This link will explain why this is and how to fix it,

Mar 02, 2010 | 1998 GMC Sonoma

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Check engine light on computer codes 171 174 171-HEGO sensor unable of snitch cylinder bank #1 fuel system at adaptive limit (1990 on) code 174 hego sensor snitching too slow, cylinder bank #1 (1990)


switch, we run off snitches. 171 174 banks 1 & 2 Lean. Most likely cause are Upper Intake Manifold Gaskets, failed seals. It's not 1990 on. It's 1996 and on OBD2.

Aug 03, 2009 | 2003 Ford Explorer Sport

1 Answer

Codes #171 & 174


first check out for o2 sensor if its faulty this can show up.but if its proper.Evaporative emission control system leak very small 171 System too lean (bank 1) 174 System too lean (bank 2) 

Jan 05, 2009 | 2004 Ford F150

1 Answer

Check engine light comes on


I looked up code 171 and found 'system lean bank one' Sounds like a fuel injection sensor. countrycurt0

Aug 28, 2008 | 1999 Plymouth Breeze

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