About 4 days ago, my 1995 S10 2.2L with manual trans wouldn't crank/start. I jumped it from another car and managed to get it running. Drove the truck hoping to charge the battery and it started fine again about an hour or two later. But next morning it wouldn't start and jumping didn't help.

I looked around for a possible battery drain. One at a time I pulled all the fuses. Finding nothing, I finally pulled the battery (from 2004, I think - before my time) and had it tested. Bought a new battery and and all was fine. I drove the vehicle in for a charging system test - which showed all was well too.

Since doing all this I have now seen the Service Engine light come on twice. This is not something I am used to seeing. So today I jumpered the proper connectors under the dash and read the error code. Only one of them: #32 - which I read to be something regarding the EGR valve.

I find it strange and very co-incidental that this should happen now just after the battery change. So I am wondering if they are related? Anyone have any insight on this?

One other thing to mention is that I have been hearing and ignoring rattling from the cat converter for some time. It seems worse at idle and until things warm up. But then not too bad. I am starting to look into that now. I can hit the thing and it sounds like something inside is loose and banging around in there. Since there are no bolt flanges on the thing, I think I will have to take it into a muffler shop for removal and replacement. Could that possibly be related? Just wondering.

Thanks for your time and input.