Try reset the idling by first turn on the engine without starting or revving it. Then turn off. Next remove the battery pole, one pole will do then turn on the engine again with your car key and wait 10-15 sec. then turn off. Next connect the battery then start your engine. I think this will reset your revolution setting.
Hi, my neighbor also encountered the same problem, the mechanic told them that it might be the computer box, but after seaking for a second opinion. it is found that hydraulic hose of the engine is the culprit, they fond a crack on the hose due to its age.
SOURCE: toyota avanza controll reve counter
Hi
i have a Toyota Avanza 1.5 sx. been driving it since 2007 without problems
early this year the reve started mulfunctioning. it goes up and down in an idle mode. when it started it was cutting power as i stop.
took it to Toyota dealer 3x they could not identify the problem. its now better and like in the morn8ing when i start it it goes to 3000 revers and after a while drops down to 1000rerves. this problem is still happening like once in two days or once everyday of idling up and down
please help
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