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Ok Guys...I found the small white tach wire that Fylin'Brian has shown us, I probed it once with a test light (key on, tach needle pulsed), hooked grd to the dash panel cross brace, switched power source to the the Orange wire (left side of key switch)...set raptor to 1200 rmp, it doesn't work! I've verified that orange switched wire only works when key is on. Do I need a better ground? Where have you attached the ground wire? Also I can probe the white tach wire again and tach doesn't pulse (tach works while engine is running) very Please help..thanks! (I did dis-connect battery grd before making final conections) could I have blown a relay or something?
Last edited by 3Vettes@Home; Apr 16, 2005 at 12:31 PM.
I just got home and recieved your PM. Glad you got it worked out.
Was it the ground or did you have the wrong white wire?
I had to go through all 4 wires before hitting the right one.
Hi Jim...I found the correct white wire, it and the ground were fine, I didn't have a good connection at the orange ignition switch wire, Thanks for responding