my speedometer doesnt read at all. i have red top sr20det with matching harness and transmission.

Need more info yo. :)

Have you checked the Vehicle Speed Sensor?

Also, if you have an SR20DET transmission I'm sort of assuming this is in a 240sx, since all the SR20DET fwd motors are from AWD applications. Please clear this up first. :)

Also, what's this doing here? Find the section where your car belongs and post it there. AND, SEARCH. This is probably discussed up in the techie section.

Also, what's this doing here? Find the section where your car belongs and post it there. AND, SEARCH. This is probably discussed up in the techie section.

Truth. Aside from that. club240 will be able to help you way better than most of the guys on here. Although it doesn't say this anywhere, most of the people here are FWD SR20 guys. :)

Of course we have our fair share of 240 guys as well, but not as much as on club240. :)