HO2S resistance specification - Ranger-Forums - The Ultimate Ford Ranger Resource


SOHC - 2.3L & 2.5L Lima Engines Discussions and Topics specific to the Lima 4 cylinder engines

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 10-07-2008
Member
Thread Starter
 
Join Date: Sep 2008
Location: Holt, Missouri
Posts: 4
HO2S resistance specification

Last week, my 99 Ranger gave me the check engine light with 4 codes, 1409, 1451, 0135 and 0141. After a little searching through this forum and other web resources, I found the fuse that supplies power to these items (EGR regulator solenoid, EVAP control solenoid and both O2 sensors) and found it was blown. I replaced the fuse and it blew shortly afterward.

Both solenoids show resistance readings within specifications, so now I suspect one of the O2 sensors may have a shorted heater. What should the resistance reading be for these and does anyone know what pins on the connector are for the heater elements?

Any assistance in troubleshooting this would be greatly appreciated. My gas mileage is suffering from this issue.

Thanks,

Bruce
Reply With Quote
  #2  
Old 10-21-2008
Member
Thread Starter
 
Join Date: Sep 2008
Location: Holt, Missouri
Posts: 4
I finally determined which component was blowing the fuse by process of elimination and going through several fuses. Disconnecting one item at a time then starting the vehicle. O2 sensor before the converter was blowing the fuse.
Now comes the fun part, getting the old sensor removed. 186K miles on this truck and it's not wanting to let loose.
Reply With Quote
  #3  
Old 10-21-2008
Member
 
Join Date: Nov 2005
Location: Elizabeth City, NC
Posts: 767
Rent/borrow the O2 sensor socket at the AP store.

Try removing it cold, then various degrees hotter (run the engine to heat it up).

Mine are remarkably accessible with the fenderwell liner removed.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Front end resistance when driving GreyRanger Drivetrain Tech 3 02-07-2010 06:26 PM
Braking resistance noise from the front when coasting? nross Drivetrain Tech 15 04-08-2009 04:58 PM
Need to know the pretensioner voltage/resistance? winks General Technical & Electrical 2 07-10-2008 07:31 AM
code 176 retrieved......HEGO (HO2S) SENSOR FAULT/RICH Jeremy102579 General Technical & Electrical 1 11-12-2006 01:52 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 03:06 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.