Hey I just bought an '87 firebird formula, automatic 305 TPI. The guy I bought it from replaced the alternator, did a tune-up, and oil change before he stored it for the winter... I replaced the fuel filter and the cheap battery he had in it. (not all of this is relevant, but it's background info.)

After the car stalled the first time I found the radiator almost empty, filled it, haven't noticed any leaks.

The car seems to be doing better, but on occasion, after I drive somewhere and shut the car off (once it's at normal operating temp) and only leave it for a few minutes and turn it right back on, it spits and sputters on acceleration, and stalls at idle speed.

I seem to only be getting about 100 miles or so out of a full tank of gas, and the guy I bought it from said it gave him an O2 sensor code. Also, the fans do kick on around 220, but they seem to vibrate the whole front end of the car and I don't remember it being that loud on my old '85 :P

any thoughts would be greatly appreciated, the car is mostly reliable, but I want to work out all the little kinks

 

Also a few quirky things I've noticed, if I'm sitting in the driveway idling, and the temp is up past 200, pre-220, and some one shuts the hood, sometimes the car will stall, and I've had the fans cause it to stall when they kick on, but not every time lol.

Still looking for some ideas :/

 

Today it stalled when I slowed all the way down to go over some tracks on my way home from work... Twice.

Still looking for some help, I'm gonna look over the wires tomorrow to see if there is a short somewhere.

 

Still no input?

Well I did the paperclip trick to get the codes and I got 13, 33, 44, and 45.

The previous owner had the back half of the exhaust done and I need to take a look and see if they even put the O2 sensor back on. Could those be causing the sputtering and stalling?