Hey guys, was hoping I could get some help. I have an 85 t/a and was pulling a code 24. Replaced the vss ( yellow box behind speedo, cable speedo) and had the car working a lot better. Finally got the dash back together last night and now I'm pulling another code 24. I'm thinking it might be the ground cable? If it is the ground, where is the ground located for the vss?

Thanks in advance