Thanks again. No I don`t have a vss I have the original th400 from -70. and the O2 sensor is new but I´m not shure about the ground of the exhaust so I will ground it again so Im shure

Now theres only to fix the trouble codes: 12 is normal , 13 oxygen sensor circuit open?, 24 VSS (vehicle speed sensor) circuit low anyway to disconect it or just let it be? 44 lean exhaust. Any one...

Thanks fastacton now its working

Thanks I will try that

Hi from Finland. I´m new to the sight and i got a problem trying to get the check engine light working in my car. It`s a 1970 Impala convertible that i put a 350 tbi in from a silverdo 1989 and i am...