Hey Bob. I got the same car with almost the same problem. 91 Stealth dohc 3.0 non turbo m.t. my scan data looks the same. o2, tps, ect, iat, baro, and bat. voltage are all the place. with koeo or koer. the car runs poor at 1500 rpm and wot.(stumbles, looses po... Login to read more.