Location: Newcastle, NSW, Australia
Registered: May 2002
Speed Signal/ Tacho/ Idle
Sat, 10 August 2002 01:29
The ecu needs a speed signal to shift. You first need to connect the speedo cable and then ensure the speed signal wire from the dash is connected to the SP1 pin on the ecu. While the Chasers do have a speed sensor in the transmission this is used for the ABS and not to control shifting.
Standard tacho's are designed to operate on high voltage (>100 volts) whereas most Jap spec Toyota's output 12 volts. I am in the final stages on testing a purpose-built tach convertor circuit and these should be ready for sale in the next week or so.
As far as the idle goes, this is could be a sticky idle air control valve particularly when the idle steadied after you introduced an air leak into the system. Drive it for a day or first and if it doesn't settle it may be worth swapping it with one that you know works (as a test).
Sat, 10 August 2002 01:29
