I own a 1985 Full size Bronco EFI and it runs like crap.
This is what it is doing. At a light it will run real rough or stall if you don't drive with two feet but yet in park or neutral it runs fine. I ia going to replace the o2, TPS, and I have new 19 lb injectors for it, and also the pcv.
The truck has a overdrive tranny which sucks when it shifts into 3rd of overdrive it also has no power, it runs like all the cylinders arn't firing and I get some black smoke. If any one has any ideas please help.

 

Its not the TPS, Though the O2 sensor might be the cause. best to get it scanned and find out what really is wrong. Could just need a tune up or might be something more serious.

Dave

http://a2ztowing.homestead.com/a2ztowing.html