I have a Greddy TT which I wired for a 97 Eclipse GST, here's the problem: When i hook up the wire for the speedo senor with the ecu speedo sensor wire, the TT doesn't work properly ( turns off when i take the key out ) and when i disconnect the connection for the speedo from the TT to the ecu wire, it works fine, in both cases the e-brake wire is hooked up, Any clues as to why its doing this with the speedo wire hooked up?? and yes its the correct wire that i'm using on the ecu

 

Simple, Don't hook up the Speed Sensor Wire!

That how mine works. Could get it to work so Just grounding it worked!

 

:thumbdown: to greddy. there are a billion threads like this where it works sometimes/doesn't work others. i've got the greddy fatt in my civic and it only works half the time. with or without the speed sensor hooked up.