TravisG
Active member
- Joined
- Nov 9, 2000
- Location
- Salt Lake City, UT, USA
I replaced all 4 plugs about a month ago. A few days ago the CEL came back on. I went to the dealer and picked up a harness. While preparing to change the harness, I thought I would go ahead and test the plugs again. Suprisingly one ready 5.6 instead of .8 like the others. I removed that plug and found it to be covered in soot. While replacing my glow plugs a month ago, I noted that the bad plugs had a significant amount of soot on them. I didn't have a replacement plug with me, so I cleaned it off and replaced it. After I replaced it the reading changed from 5.6 to .8!
Is it possible this plug went bad in 3-4 weeks? Or is it the harness? Could a bad harness connection lead to the plug sooting and subsequently providing a high reading? Do I have a faulty 4 week old plug or a harness that is causing my plugs to fail?
Is it possible this plug went bad in 3-4 weeks? Or is it the harness? Could a bad harness connection lead to the plug sooting and subsequently providing a high reading? Do I have a faulty 4 week old plug or a harness that is causing my plugs to fail?