See the --select link-- button at upper right. Look at the FAQ contents listing for OBD or OBDI. Your '89 engine and codes are the same as 700/900cars with LH 2.4 fuel injection and EZ116K ignition. ('89 was the first year for 240s)
--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.

Hard to believe....neither informed you that you have a scanner, of sorts, under the hood....know as OBD (On Board Diagnostic). In engine compartment, in front of driver side, tucked in the corner by the big round thing (brake servo), and the spring for the hood, is a small black box. The cover comes off, and you will see a small red light (not lighted), a small button, and six holes, plus a probe attached to a wire. Check this boards archives for how to read the codes. The codes will tell you why the check engine light is on. For what it is worth, my "check engine" light was on when I bought my 89, 245 (173K miles). According to the OBD I should replace my oxygen sensor. I have yet to do that, light is still on, car runs really fine (31 mpg highway), and strong at 315K.

Pick up a Bently Volvo repair manual, or a Haynes Volvo repaire manual. You'll find it comes in handy, and most of the maintenance you can do.

Enjoy.
--
84, 242GLTi, 167K, 4+OD, still in rehab; 89, 245 DL, 312K, M 47, daily driver; 93, 245, auto, 167K ; and other toys.

The "What's wrong" info is derived from a 3 digit code. The code is stored in the computer, and a scanner is needed to get it. Got to an AutoZone or other parts house and see if they will scan it for you.

Good Luck,

Bob

:>)