Is this normal or is my sensor not working properly?
Anyone with a 2004 v6 3.2 and VCDS to test?
Engine is AZZ.
Anyone with a 2004 v6 3.2 and VCDS to test?
Engine is AZZ.
Oil Level block blank in VCDS
TRespect
1 - 20 of 28 Posts
I only wanted to know if the 04 vr6 engine oil sensor has the ability to report data in vcds. If someone with a vr6 2004 can confirm then I will just get a new sensor and replace it on the next oil service. It is either the sensor is kaput or it simply only works with the engine ecu. Another test I will do if no one shows up is to put let's say 5L of oil on the next oil change and check if the sensor is reporting to the engine ecu.
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
I removed 2 and half liters of oil and with the ignition on there is no sign of any oil level warning !!!
I will check the wiring before ordering a new sensor.
Anyone know how to test the sensor?
I guess I have an idea of why it is not working. With all the gunk I found in the valve cover My best guess is the sensor is gunked up too and stuck in a 'good' oil level position.
Maybe removing it and cleaning will do.
Updates later.
The quick drain valve made the oil draining test easy by the way ?
I will check the wiring before ordering a new sensor.
Anyone know how to test the sensor?
I guess I have an idea of why it is not working. With all the gunk I found in the valve cover My best guess is the sensor is gunked up too and stuck in a 'good' oil level position.
Maybe removing it and cleaning will do.
Updates later.
The quick drain valve made the oil draining test easy by the way ?
This is weird as this sensor (g266) is supposed to send both oil level and oil temperture info.
The Oil Level Thermal Sensor G266
The Oil Level Thermal Sensor is threaded into the oil pan from below. Its signal is used by several control modules. The Instrument Cluster Control Module J285 uses this signal to display the engine oil temperature.
Signal Utilization The ECM receives the signal over the CAN data bus and uses the oil temperature signal to control the retarded setting of the exhaust camshaft at high oil temperatures.
Effects of a Signal Failure
The control module uses the signal from the Coolant Temperature Sensor instead of the oil temperature signal.
Not sure if it is dead. I will tests with an aliexpress 8$ sensor before cashing out the 104€
The Oil Level Thermal Sensor G266
The Oil Level Thermal Sensor is threaded into the oil pan from below. Its signal is used by several control modules. The Instrument Cluster Control Module J285 uses this signal to display the engine oil temperature.
Signal Utilization The ECM receives the signal over the CAN data bus and uses the oil temperature signal to control the retarded setting of the exhaust camshaft at high oil temperatures.
Effects of a Signal Failure
The control module uses the signal from the Coolant Temperature Sensor instead of the oil temperature signal.
Not sure if it is dead. I will tests with an aliexpress 8$ sensor before cashing out the 104€
Disconnecting the sensor didn't show any error on the dash or in vcds.
Removing 2.5L of oil didn't show anything either.
So I ordered this sensor to test: 8.81$ delivered.
https://www.aliexpress.com/item/New...J0907660-B-1J0907660B-For-VW-Jetta-Bora-Golf-MK4-Passat-B5-Fit/32896927278.html
Removing 2.5L of oil didn't show anything either.
So I ordered this sensor to test: 8.81$ delivered.
https://www.aliexpress.com/item/New...J0907660-B-1J0907660B-For-VW-Jetta-Bora-Golf-MK4-Passat-B5-Fit/32896927278.html
I disconnected the old sensor and connected the new one without replacing it.
I started the Treg for 30mn and no sign of any oil temp/level errors !!!!
I guess the system defaults to using the coolant temp but why didn't the cluster say anything about oil level?
I started the Treg for 30mn and no sign of any oil temp/level errors !!!!
I guess the system defaults to using the coolant temp but why didn't the cluster say anything about oil level?
I get nothing. So either the previous owner was bugged by a bad sensor showing alerts all the time and didn't bother replacing the sensor and either did some resistor hack to make the treg believe oil level is ok or disabled it via vcds/coding if that's possible. So first step if to check the wiring and see it there is any hidden hack. Next comes some research into oil level sensor vcds coding.
Next time try reading the sensor this way and see if anything changes.
Close hood and keep closed. Start engine. Scan for oil level and temp.
Another method. If you drive the vehicle somewhere, just pull it in and leave it idling at the end of the trip, hook up the VCDS, and see if oil level / temp scans properly.
There is some discussion that the hood open signal acts as a reset and restart for the oil level system for some model years. It could be the system will not respond with the hood up.
Close hood and keep closed. Start engine. Scan for oil level and temp.
Another method. If you drive the vehicle somewhere, just pull it in and leave it idling at the end of the trip, hook up the VCDS, and see if oil level / temp scans properly.
There is some discussion that the hood open signal acts as a reset and restart for the oil level system for some model years. It could be the system will not respond with the hood up.
You might want to look into the information for a flexible service intervals. The G266 is a major part of this system. We might have to code the Touareg to non-US/Canada (which yours should be already) to get the G266 system to work. The system was normally deactivated for the entire T1 North America market.
Also FWIW, everything I have read keeps repeating that only the VW OEM G266 or the G266 from the same OEM manufacturer that VW gets their G266 from is reliable. All other G266 are suspect.
www.volkspage.net/technik/ssp/ssp/SSP_224.pdf
forums.vwvortex.com/showthread.php?1632173
Also FWIW, everything I have read keeps repeating that only the VW OEM G266 or the G266 from the same OEM manufacturer that VW gets their G266 from is reliable. All other G266 are suspect.
www.volkspage.net/technik/ssp/ssp/SSP_224.pdf
forums.vwvortex.com/showthread.php?1632173
After reading how the system works, I would heat some water to about 65 Celsius. Make sure the sensor fully sits in the water, but that the outside parts that are normally not in the engine oil are kept dry.
Start the engine and see what the oil temp says. Also check the measuring blocks.
After reading how the ECU reads the sensor, I have doubts that the outputs from a dry sensor will be accepted by the ecu. The ECU probably marked the oil level sensor output as out of spec and deactivated the oil level readings.
From what I can see, the oil level sensor is fed with voltage that should warm the sensor. The voltage is cut off and resistance thru the sensor is read. As the sensor cools, the resistance changes. The ECU computes an oil level indirectly thru the temperature change of the oil level sensor, then goes back to step one, putting a voltage on the sensor to heat it again. See page 21 of SSP 224 for more info.
Hmm... it does not say anything about reading an overfill does it?
Still, it is either do this warm water test or actually put the sensor in the engine to test it.
Thank for the info.
I would expect the ecu to fire an alert if the sensor is disconnected but I get nothing. So I assume either the previous owner hacked the wiring with some resistors before the sensor plug which I can not find or he disabled the sensor via coding. I'll be checking the coding in a few minutes.
I would expect the ecu to fire an alert if the sensor is disconnected but I get nothing. So I assume either the previous owner hacked the wiring with some resistors before the sensor plug which I can not find or he disabled the sensor via coding. I'll be checking the coding in a few minutes.
1 - 20 of 28 Posts
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
