Hi all. I have an Elantra AD 1.6 automatic transmission. There is a question about the operation of the VIS valve - changing the length of the intake manifold. In theory, it should work at low and high speeds (up to 2000 and after 5000), and off at medium ones. According to the parameters that I found on the Internet, the voltage on it should be, when turned off, within 1.5 volts, and as a response, the mains voltage.
Those. as soon as the car starts, the valve should retract, but mine does not retract. I connected a multimeter to the chip, traveled, then there is a constant voltage of 10.8 volts + - both at low and at high speeds. And if you apply 12 volts directly to it, it retracts, i.e. Physically it works. But the signal is not correct.
What could be the reason?
Those. as soon as the car starts, the valve should retract, but mine does not retract. I connected a multimeter to the chip, traveled, then there is a constant voltage of 10.8 volts + - both at low and at high speeds. And if you apply 12 volts directly to it, it retracts, i.e. Physically it works. But the signal is not correct.
What could be the reason?
Nov 4, 2022 at 7:35 AM
