Diagnosing Volvo V40 2.0T 165KM Variable Valve Timing Sensor: Resistance and Voltage Queries

Question

Hello, I have a Volvo V40 2.0T 165KM.
The mechanic at first glance diagnosed this sensor (the car dims at low revs).
Is there any possibility to measure this sensor? He should have some resistance? Because if I understand the principle of its operation correctly, it should open / close after applying voltage, right?
What tension should there be on the ankle that leads to it?

aka85 · Answer

Hello, I am not a mechanic, but from what I know it is for fading at idle or
approaching the intersection is rather the stepper motor ...
I don't know what the variable valve timing sensor has to do with it. best regards

helmud7543 · Answer

Depending on the engine controller, the reasons may be different, but it must be taken into account that if it stabilizes them properly when parked, there is little chance that it is the fault of the idle speed control. As for VVT, a little vague description. Usually the car clinks and has power problems but fading? In what moments does it fade? I would look for symptom descriptions for Toyota (VVTi), BMW (Vanos) or Alfa (I don't remember what this system is called in Alfa).

milejow · Answer

It is not a sensor but an ordinary valve supplying oil to the VVT actuator, no power supply - valve closed, power supply given - valve open.

kortyleski · Answer

there is both a sensor and a valve. The sensor in this car is the hall. You can check with LED.

Strumien swiadomosci swia · Answer

So, get the cars away from the freak ASAP. The 2.0T has a very extensive vacuum and airflow system, and that's where I would look for, a throttle and a flow meter.

dimitriew · Answer

The valve is responsible for changing the shaft control, and the sensor monitors its operation. In order to diagnose it, diagnostics should be performed in this respect. Give the car to a real specialist because he will probably read various forums in the evening and start the exchange process

Strumien swiadomosci swia · Answer

The repair should start with the information whether you have LPG and whether there is a long spin in the morning when starting up and how long it will stop.

aka85 · Answer

Yes, I have lpg Agis reducer Zavoli zeta s ... there is a problem with firing as the car stands longer. I took the car from the mechanic I found 1 problem myself. Namely, a broken O-ring on the fuel pressure sensor. It helped with firing.

kortyleski · Answer

Where is your fuel pressure sensor there?

aka85 · Answer

The problem with firing up was not the VVT sensor but the fuel pressure regulator, but rather its O-ring which was broken. I wrote the sensor above by mistake. Subject to be closed

Diagnosing Volvo V40 2.0T 165KM Variable Valve Timing Sensor: Resistance and Voltage Queries

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