Speed signal not present??
Thread Starter
Registered User
Joined: Feb 2008
Posts: 10
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Speed signal not present?? 90 240sx, 01 corvette motor and trans, 98 harness and ecu.
Ecu is not seeing speed signal, and therefor not shifting the auto tranny into the next gear. I traced the yellow and purple wire down to the speed sensor and they are fine no problems there. Replaced the speed sensor, same problem. ECU is not seeing VSS signal. Does anyone have any ideas what could be going wrong? Are there any other wires that tie into the VSS? I have the green white stripe (vss output) going into a dakota digital and it doesnt seem to be getting signal either. Anyone have any ideas??? please help.
Ecu is not seeing speed signal, and therefor not shifting the auto tranny into the next gear. I traced the yellow and purple wire down to the speed sensor and they are fine no problems there. Replaced the speed sensor, same problem. ECU is not seeing VSS signal. Does anyone have any ideas what could be going wrong? Are there any other wires that tie into the VSS? I have the green white stripe (vss output) going into a dakota digital and it doesnt seem to be getting signal either. Anyone have any ideas??? please help.
Teching In
Joined: Jan 2007
Posts: 10
Likes: 0
From: canada
vss i dont know if you solved your problem or not.I have a ls1 in a 69 camaro with 6 speed i am getting a po 500 code speed sensor same as you,i ran wire from computor to autometer speedometer,spedo woks fine but i get this code just wondering how you made out thanks al
Disconnect the speedometer from the VSS on the tranny and connect to the VSS output on the PCM.
