Code P0171 System too lean?
11-19-2010 | 11:22 AM
#1
Thread Starter
Intermediate
Joined: May 2003
Posts: 37
Likes: 0
From: Ontario
Code P0171 System too lean?
Hi guys I did a quick search on this and it sounds like one of the possible culprits is the primary o2 sensor. Where is this located on my 2.3 CL?
What are the other (most likely) causes? Should I be replacing the o2 sensor first?
Gas mileage seems ok...
Thoughts?
What are the other (most likely) causes? Should I be replacing the o2 sensor first?
Gas mileage seems ok...
Thoughts?
11-19-2010 | 01:25 PM
#4
Senior Moderator
Regional Coordinator
(Mid-Atlantic)
Regional Coordinator
(Mid-Atlantic)
iTrader: (6)
Joined: Jan 2005
Posts: 92,261
Likes: 4,489
From: ShitsBurgh
Easiest way is to pull the code from an OBD II reader, most auto parts stores should do this for you for free, I know autozone does. If not, you can use a paper clip to get the code to flash, there's a green 2 pin connecter under the glove box that you use to get the code to flash and then look up the code here.
https://acurazine.com/forums/1g-cl-1997-1999-56/%2A%2A%2Anoob-guide-read-first-before-posting%2A%2A%2A-478508/
Here's another description on how to do it
https://acurazine.com/forums/1g-cl-1997-1999-56/%2A%2A%2Anoob-guide-read-first-before-posting%2A%2A%2A-478508/
Here's another description on how to do it
Originally Posted by SupraManAG
take a little wire. splice both ends. under the dash below the glove compartment you will find a green connector plugged. unplug the connector from the stay. place the spliced wire in. each end in each hole. turn key to 2nd position. you will get a series of short and long blinks. long blinks = 10s and short blinks = 1s. so if you get three long and two short you have 32. after you get the code google honda cel codes. by the way you are running OBD2.
11-19-2010 | 01:26 PM
#5
Senior Moderator
Regional Coordinator
(Mid-Atlantic)
Regional Coordinator
(Mid-Atlantic)
iTrader: (6)
Joined: Jan 2005
Posts: 92,261
Likes: 4,489
From: ShitsBurgh
Here's some more info about the o2 sensors also
https://acurazine.com/forums/showthr...ght=paper+clip
Assuming O2 sensor is at fault, it's #28 in the pic below.
It's a sensor that should be at the end of the catalytic converter. Kinda like the following:
You'll need a o2 sensor socket to replace it.
It's a simple unplug connector, unscrew sensor, apply anti-seize to new sensor threads, then screw in sensor, plug in connector. Reset CEL and complete 3 drive cycles.
It's a sensor that should be at the end of the catalytic converter. Kinda like the following:
You'll need a o2 sensor socket to replace it.
It's a simple unplug connector, unscrew sensor, apply anti-seize to new sensor threads, then screw in sensor, plug in connector. Reset CEL and complete 3 drive cycles.
https://acurazine.com/forums/showthr...ght=paper+clip
11-19-2010 | 02:12 PM
#6
Thread Starter
Intermediate
Joined: May 2003
Posts: 37
Likes: 0
From: Ontario
Thanks.
I've already pulled the code (P0171). Cleared it once and it shows up again about 3 weeks later.
Question is, instead of replacing both o2 sensors, can I assume it's the one near the CAT?
I've already pulled the code (P0171). Cleared it once and it shows up again about 3 weeks later.
Question is, instead of replacing both o2 sensors, can I assume it's the one near the CAT?
Trending Topics
11-19-2010 | 02:52 PM
#8
Thread Starter
Intermediate
Joined: May 2003
Posts: 37
Likes: 0
From: Ontario
According to http://repairpal.com/OBD-II-Code-P0171-and-P0174
P0171 is bank 1. Would this be the sensor near the CAT?
P0171 is bank 1. Would this be the sensor near the CAT?
01-26-2011 | 10:47 PM
#14
Instructor
Joined: Jan 2009
Posts: 169
Likes: 9
http://repairpal.com/OBD-II-Code-P0171-and-P0174
check the vacuum leak first as it is a much cheaper and easier fix...
check for plugged Fuel Filter or weak Fuel Pump or Plugged or dirty Fuel Injectors
check the vacuum leak first as it is a much cheaper and easier fix...
check for plugged Fuel Filter or weak Fuel Pump or Plugged or dirty Fuel Injectors
Thread
Thread Starter
Forum
Replies
Last Post
mada51589
3G TL Problems & Fixes
79
05-03-2022 08:54 PM
cycdaniel
1G TSX Performance Parts & Modifications
8
12-17-2019 10:58 AM
