Car is '87 T&C Wagon, 2.2L Auto. On the way home today (doing about 60mph) it ran FINE for the first 60 miles. Then all of a sudden, I lost power. Not electrical power, but.... it's like the engine wasn't getting any fuel. When I pushed the gas, it backfired a few times, coasted down to about 50mph where the pitch of the engine changed slightly and then accelerated like normal. It did this a few times for about 15 miles, then started doing it about every 10 seconds! It would accelerate fine, drive fine, then all of a sudden coast down to 50 or so while backfiring anytime I touched the gas. I tried driving 45-50, but no luck, still doing it.

I ran the codes, got nothing but 55.

Any ideas? I need to get this thing fixed asap as it is my only means of transportation right now! Thanks!

*EDIT* I was able to limp it home, but my speed was constantly going 60-40mph and back....