Forums
New posts
Search forums
Image search
Shop
Amazon Store
T-Shirts
Stickers
Members
Current visitors
Supporting Member Upgrade
Sponsors
About
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Image search
Search
Search titles only
By:
Search titles only
By:
Menu
Install the app
Install
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Jeep Wrangler JK
JK General Discussion
P0430 engine code
Reply to thread
Message
<blockquote data-quote="Chris" data-source="post: 420400" data-attributes="member: 1"><p>The most likely explanation is either an O2 sensor or a faulty catalytic convertor. </p><p></p><p>The O2 sensor is pretty easy to test. I'm not sure on the exact procedure, but in the FSM (Factory Service Manual) there is a procedure to test the resistance, and you can very quickly find out if the O2 sensor is bad or not.</p><p></p><p>If you have 137k on the stock O2 sensors, I can all but guarantee that they ALL need to be replaced. O2 sensors are a standard wear and tear maintenance item, and ALL of them need to be replaced every 80k miles or so, not just one of them. Your Jeep will not only run better, but the fuel economy will often times slightly improve as well.</p></blockquote><p></p>
[QUOTE="Chris, post: 420400, member: 1"] The most likely explanation is either an O2 sensor or a faulty catalytic convertor. The O2 sensor is pretty easy to test. I'm not sure on the exact procedure, but in the FSM (Factory Service Manual) there is a procedure to test the resistance, and you can very quickly find out if the O2 sensor is bad or not. If you have 137k on the stock O2 sensors, I can all but guarantee that they ALL need to be replaced. O2 sensors are a standard wear and tear maintenance item, and ALL of them need to be replaced every 80k miles or so, not just one of them. Your Jeep will not only run better, but the fuel economy will often times slightly improve as well. [/QUOTE]
Verification
Post reply
Jeep Wrangler JK
JK General Discussion
P0430 engine code
Top
Bottom