Originally Posted by ShadowTek View Post
The first thing I would do is swap both upstream sensors over to see if the problem moves to the other bank. If it does then your O2 sensor is faulty.
Without proper diagnostic equipment you have to use a process of elimination, not guesswork.
One thing at a time
2003 WJ 2.7 CRD Overland
I'm waiting for a cheap OBD2 scanner that I found on Amazon, so maybe that can tell me something. I've seen the Youtube videos where some scanners can display live voltage readings of the sensors and whatnot, but I don't know if the one I ordered can do all that or not.
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|