1993 supra ta project to a1998 ttvi twin, auto to 6 spd open rear to limited slip

[Guest Kmichael]

Need help with the throttle etcs-1. Have 5 vts at blue red wire and the tps seems to om out ok but cant get any responce

engine starts runs good but in limp only revs up only last 30% of throttle. Others have said to hook up blue red wire from

lower fuse area and we did with a 15 amp fuse link. I am ready to tear off and go manual. Is there somthing we missed

If anyone has any ideas we are all ears THANKS FOR HELP, Kevin

[EMPEROR]

Keep an eye on this thread:

http://www.mkivsupra.net/vbb/showthread.php?260557-Problem-with-VVTi-Throttle-Body

And this one might be useful too:

http://www.mkivsupra.net/vbb/showthread.php?232824-J-Spec-Engine-Harness-Connector-Details/page3

I have the exact same problem, and still tracing it... Will write as soon as I find it...

 

Check the voltage on the Throttle Valve Motor. I don't have the +12v on it.

Edited January 25, 2012 by EMPEROR (see edit history)

[Guest Kmichael]

Thanks for geting back your wiring matches our ecu and shell with only a couple of different ones that go to the same place.

If allels falls you can put a q45 ithrottle with a couple mods on it and it will be manual but not sure about tps that still worries me

[Guest Kmichael]

I dont see in the wiring were its 12v only 5v on the tps blue red wire my wiring book is us version i dont have the japan version

[EMPEROR]

Check post 41 on the second link. You will see which connector and which pin you should check. I guess you are using the VVTi engine wiring harness. Or whatever you have modified, you still have the connector for the throttle valve motor. You should check if you have 12v on it, I am not talking about the upper fusebox connector.

 

P.S. Btw, on the blue-red wire on the upper fusebox connector, you should have 12v, not 5v

http://i224.photobucket.com/albums/dd108/wilbo666/final314.jpg

[Guest Kmichael]

Yes vvti stock harness. I dont have 12v to the throttle valve motor eather and pin 3 is the only grounded wire. I ment 5v on the blue/red wire on the throttle position sensor

[Guest Kmichael]

How you making out with the electric nightmere. I havent been able to find the problem. Dont now what els to check.