Question about 2007 Chrysler Aspen 4x2
Replaced o2 sensor, error code still on
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Chrysler LHS o2 sensor testing
If u know u have a bad o2. I guess u must have used a scanner or equivalent. There are 4 o2s on LHS. The way u can tell the difference is by the # sequence that the failure code is giving u. For example the o2s on the right side are even # on the left odd #. Pre cat is 1 after cat is 2. So if u have bad 2/2 Than u know it's right rear or a bad 1/1 is left front ect ect. First make sure u have the right code. With out a scanner. it can be done with a volt meter or a vantage, but it's a heck of a lot easier pulling the codes.
Posted on May 15, 2008
The only way, for shure is to go to computer diagnostics. 99% sure that this is some engine sensor, buy only diagnostics will tell who. (130,000 miles, hm lamda. it have only 150,000km live)
Posted on Apr 28, 2009
A great tool to have that can save you some money to read computer error codes and clear them after work has been done can be had for under $100 from Actron. This is what I have been using and its a life saver but it's also good to have the vehicles repair manual as well.
The computer on this car is OBDII like many other vehicles out there these days so you'll need a tool that can plug in and read the outlet located above the shin of your right leg under the dashboard or steering wheel. Here is a link to a bunch of their products on amazon Actron and other OBDII Computer diagnostic code reader tools.
Posted on Jan 11, 2010
I had a similar problem with my car. It turned out the O2 sensors were fine and the issue was a leak in the throttle body causing the engine to run lean. If you have an ODB2 scanner you can look at fuel trims, etc and will be able to tell.
Posted on Mar 28, 2010
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