Notices
PCM Diagnostics & Tuning HP Tuners | Diablo | Pantera EFI

Narrowband O2 sensor issue

 
Old 08-27-2014, 11:04 PM
  #1  
TECH Resident
Thread Starter
iTrader: (24)
 
sschoeffler's Avatar
 
Join Date: Jul 2006
Location: Oklahoma!
Posts: 761
Default Narrowband O2 sensor issue

So I had a bad O2 sensor and replaced it. Old one would read bounce between 443 and 447 on HP Tuners. This is for the drivers front bank 1. Replaced it with an OEM GTO sensor, cut the rectangular plug off and soldered it to the square plug, heat shrink and convoluted plastic tubing. worked great for about 3 miles. drove it easy the first two then hammered it for about 1/4 mile to 110MPH. I get it home and check the log, about 40 seconds after I hammered it, the new sensor started bouncing between 443 and 447 millivolts just like the one I just replaced. didn't touch it again till tonight. Hooked up HP Tuners and the O2 sensor is reading accurately again. I haven't ran it yet just curious why it would fail when the sensor gets hot and if its something other than an O2 sensor that would cause this. The car is a 99 SS Camaro btw.

Could the O2 sensor wires be picking up heat from the headers and cause this? Any help would be appreciated. Thanks in advance

Stephen
sschoeffler is offline  
Old 08-28-2014, 11:33 AM
  #2  
Moderator
iTrader: (11)
 
jimmyblue's Avatar
 
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,614
Default

Are you seeing any immature O2 sensor codes, and have
you disabled any codes as anything other than 3 / Enabled,
No Error Reported? This response you indicate, is what
happens when the PCM find some sort of fault.
jimmyblue is offline  

Thread Tools
Search this Thread
Quick Reply: Narrowband O2 sensor issue


About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

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.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: