Home Menu

Site Navigation


Toyota 4Runner Forum - Largest 4Runner Forum > > > P0170 Fuel Trim Malfunction (Bank 1)
User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 03-18-2012, 09:03 AM #1
Grapdawg Grapdawg is offline
Junior Member
  
Join Date: Feb 2012
Location: Minnesota
Posts: 5
Grapdawg is on a distinguished road
Grapdawg Grapdawg is offline
Junior Member
 
Join Date: Feb 2012
Location: Minnesota
Posts: 5
Grapdawg is on a distinguished road
P0170 Fuel Trim Malfunction (Bank 1)
Hello All, Well after searching this forums and doing some research, I would like to get some of your opinions before i try and rid my T4R of this dam CEL. OK so i changed the plugs and wires cleaned the MAS and throttle body. the code keeps coming back. Should i change the 02sensors or a new MAS? Im on a budget and only have enough cash for one or the other. Any suggestions? 2000 T4R Limited V6
~ Hard starting (usually 5-6 cranks) ~ idles rough when cold ~ Poor MPG (about 14-16) ~ Idles high at times
Last edited by Grapdawg; 03-18-2012 at 10:11 AM.
Grapdawg is offline   Reply With QuoteReply With Quote
Old 03-18-2012, 06:29 PM #2
Grapdawg Grapdawg is offline
Junior Member
  
Join Date: Feb 2012
Location: Minnesota
Posts: 5
Grapdawg is on a distinguished road
Grapdawg Grapdawg is offline
Junior Member
 
Join Date: Feb 2012
Location: Minnesota
Posts: 5
Grapdawg is on a distinguished road
sorry wrong code. P0171
__________________
2000 T4R Limited
Grapdawg is offline   Reply With QuoteReply With Quote
Old 03-18-2012, 07:59 PM #3
fourwd1's Avatar
fourwd1 fourwd1 is offline
Moderator
  
Join Date: Jun 2004
Location: the Socialist State of Maryland
Posts: 11,482
Real Name: The Chosen One
fourwd1 is just really nice fourwd1 is just really nice fourwd1 is just really nice fourwd1 is just really nice
fourwd1 fourwd1 is offline
Moderator
fourwd1's Avatar
 
Join Date: Jun 2004
Location: the Socialist State of Maryland
Posts: 11,482
Real Name: The Chosen One
fourwd1 is just really nice fourwd1 is just really nice fourwd1 is just really nice fourwd1 is just really nice
Start by checking the air induction system and hoses for leaks.
Then O2 sensor and wiring.
__________________
- the Internet - the mother-ship of people who don't know much and aren't afraid to go public
'84 4Runner - ARBed 5.29s F&R, 4.7 & 2.28 t-cases, 2" drive train lift, BudBuilt x-member/skid, 30 spl Longs
'83 Toy P/U - Buick 231 V6, Holley 4 bbl, Weiand intake, Downey headers, TH350 w/700R4 low gearset,
'89 4Runner SR5 - stock
fourwd1 is offline   Reply With QuoteReply With Quote
Old 03-18-2012, 11:15 PM #4
Grapdawg Grapdawg is offline
Junior Member
  
Join Date: Feb 2012
Location: Minnesota
Posts: 5
Grapdawg is on a distinguished road
Grapdawg Grapdawg is offline
Junior Member
 
Join Date: Feb 2012
Location: Minnesota
Posts: 5
Grapdawg is on a distinguished road
OK! Thanks for the reply! I was beginning to wonder if anyone was out there. I did check the vacuum lines that are associated with bank 1 cylinders. I will try and take a more thorough look this week. I'm thinking O2 sen as it is so intermittent. I have reset the ecu a couple times and it takes a day or so of diving before the CEL comes back on.
__________________
2000 T4R Limited
Grapdawg is offline   Reply With QuoteReply With Quote
Reply

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Air-Fuel Ratio (A/F) Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) vipblades 3rd gen T4Rs 33 10-25-2014 11:06 AM
Mr. Bank's 4runner Mr. Banks Gallery 8 04-14-2012 09:25 PM
Error Code P0170 (First Bank Lean) 3.4L V6 Dirt4dinner 3rd gen T4Rs 1 08-18-2010 10:49 PM
Short and Long Term Fuel Trim values? snowjay Maintenance/Detailing 0 07-28-2009 08:12 PM
EG034-07 06/28/2007 Engine Controls - Bank 1/Bank 2 O2 Sensor identification CBR_GUY_IA TSB 0 07-12-2009 09:31 PM

» Follow Us!!!
» Log in
User Name:

Password:

Not a member yet?
Register Now!
Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 11:10 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Toyota - 4Runner . org Forum Terms and Privacy Policy
Copyright © 2020