View Full Version : i have a 1996 toyota previa i have a problem with the gear change can any one

steve j
11-05-2007, 11:04 PM
help me? i have a 1996 n reg toyota previa 2.4 gl auto uk model and the engine went on it . so i changed the engine and box used my gearbox and my wiring but the engine i used came out off a 1993 toyota previa but all the switches etc were the same . it starts and drives fine but it changes the gear at 5000 revs which it wasnt doing before . on the throttle body there is a clip with 4 wires if you disconnnect that then the gears work fine but not the overdrive i have changed the gearbox as well and still doing the same does anyone outther no what it could be the wiring on the throttle body is called tps wiring . please help me some one i am desperate

11-05-2007, 11:05 PM
Sounds like the computer is confused from the 1993 sensors you have on that engine. May need the 1993 computer, or switch all the sensors to match the 1996 computer.