Abscate scared me with this comment, so I had to get it done.

abscate wrote: ↑13 Mar 2025, 21:04 That’s scary dangerous

The angled one goes to a nipple on the ETM's plastic pipe, if it's the same on my '99 XC, next to the MAP sensor.

Mine is a '99, which had the flashing arrow and check engine light. When I scanned it, I got TCM-0039, which is "Gear shift position sensor Faulty signal". I figured might as well start by cleaning the PNP. I found this thread...https://www.matthewsvolvosite.com/forums/viewtopic.php?t=2993...