Update: I got a little red 9434225 relay, and it works like a charm. I'll keep the old yellow one as a spare.

I replaced the fuel system relay (the one by the radiator) at the same time for good measure. Hopefully by tomorrow the stalling problem will just be a bad memory.

Thanks for your help ...

Thanks guys. Sounds like a reasonable conclusion.

My old relay still works. Its just one of the suspects for my intermittent stalling problem and I'd like to swap it out to eliminate it. I've already replaced the fuel pump.

I'll report back on whether the 9434225 relay works as a replacement for ...

Here's a snapshot of the schematic I have:
87A and 87B both end up at the fuel pump. I couldn't find 20/11 anywhere in the reference, so I don't know what it is. Maybe a probe point?

Here's the replacement part I bought (that doesn't work): http://www.eeuroparts.com/Main/PartDeta ... id=9441029.

The info on this site is consistent with what Volvo told me.

Thanks guys. Sounds like 9434225 is probably the right part to try.

Yup, that's the same as my part:

FP Relay1.jpg

FP Relay2.jpg

When I called the local Volvo parts dept and gave them my model/year/etc, they first gave me 9434225. But when I told them my relay has 5 pins and gave them my ...

I figured 9434225 was wrong since it had 4 prongs.

So, the part you replaced had 5 prongs, and the new part has only 4? Is your car a manual or an auto?

I've been experiencing intermittent stalling problems, and reading the massive thread on the subject: https://www.matthewsvolvosite.com/forums/viewtopic.php?t=3484 trying to get it resolved.

One of the things I want to try is replacing the fuel pump relay. Mine still works, but I suspect it of ...