Air filter sensor

[Basko]

Hello everyone.

Question:

I have the intention to install a vacuum sensor in the intake air to check the status of contamination of the air filter HDJ TLC 100. In some models of 80 and 100 is already built into the system notices a dirty filter light that indicates the board, but mine did not come with that, so I placed one interested, as I see it very useful.

I was figuring out the market and get different types of vacuum sensors, and electronic viewfinder, but there are different ranges of pressure, so I like to know if anyone knows what is negative pressure (vacuum) between the maximum allowable air filter and intake of 4.2 l TDI diesel engine.

thank you very much

Greetings!

 

[100 TD]

Just buy the OEM one from here for $75 and plug it in to the existing wiring on your vehicle, and your lamp on the dash will work if it has a bulb in it, if not, buy a bulb at the same time.
89593-60030
Toyota Parts Cheap.com

 

[Basko]

Just buy the OEM one from here for $75 and plug it in to the existing wiring on your vehicle, and your lamp on the dash will work if it has a bulb in it, if not, buy a bulb at the same time.
89593-60030
Toyota Parts Cheap.com

Thank you very much for the reply.

Some more questions:
What is the vacuum pressure that activates the sensor?
You know what the electrical connection to connect this sensor? It's the same sensor vacuum for all Land Cruiser engines? The engine is diesel.

regards

 

[100 TD]

This is the FACTORY original sensor from a 98 onwards 1HD-FTE or 1HZ engine LC100. It will plug into your existing wiring harness on your vehicle, the connector will be sitting next to the aircleaner, 2 wire grey or white plug.

 

[Basko]

This is the FACTORY original sensor from a 98 onwards 1HD-FTE or 1HZ engine LC100. It will plug into your existing wiring harness on your vehicle, the connector will be sitting next to the aircleaner, 2 wire grey or white plug.

Ok, Thank you !!

 

[100 TD]

The white square thing is the sensor, the wiring plugs in under neath it. 2 wires, if you short them you will probably activate your dash lamp(if there is a lamp in the socket)

 

[100 TD]

28. INSPECT AIR CLEANER WARNING LIGHT
(a) Disconnect the connector from the air filter warning
switch. Connect the wire harness side connector terminals
1 and 2.
(b) Start the engine. Check that the bulb lights up.
If the warning light does not light up, replace the bulb.

29. INSPECT VACUUM SENSOR OPERATION
(a) With a vacuum of 3.9 ±0.5 kPa (29.4 ±3.7 mmHg, 1.157
± 0.146 in.Hg) or above, check that there is continuity between
terminals.
(b) Check that there is not continuity between terminals with
no vacuum.
If operation is not as specified, replace the sensor

 

[Basko]

28. INSPECT AIR CLEANER WARNING LIGHT
(a) Disconnect the connector from the air filter warning
switch. Connect the wire harness side connector terminals
1 and 2.
(b) Start the engine. Check that the bulb lights up.
If the warning light does not light up, replace the bulb.

29. INSPECT VACUUM SENSOR OPERATION
(a) With a vacuum of 3.9 ±0.5 kPa (29.4 ±3.7 mmHg, 1.157
± 0.146 in.Hg) or above, check that there is continuity between
terminals.
(b) Check that there is not continuity between terminals with
no vacuum.
If operation is not as specified, replace the sensor

Perfect !!! Very good data!!!

Thanks

 

[100 TD]

Add your vehicle data to your signiture line, year, model, transmission etc. You will have the wiring in the vehicle already. Does your aircleaner have the little indents where the hoses would go as in the pic?

 

[Basko]

Add your vehicle data to your signiture line, year, model, transmission etc. You will have the wiring in the vehicle already. Does your aircleaner have the little indents where the hoses would go as in the pic?

Ok, Updated profile. And Yes, my filter have two small indents (aprox. 1/8" )with small caps.

Thanks

 

[Basko]

28. INSPECT AIR CLEANER WARNING LIGHT
(a) Disconnect the connector from the air filter warning
switch. Connect the wire harness side connector terminals
1 and 2.
(b) Start the engine. Check that the bulb lights up.
If the warning light does not light up, replace the bulb.

29. INSPECT VACUUM SENSOR OPERATION
(a) With a vacuum of 3.9 ±0.5 kPa (29.4 ±3.7 mmHg, 1.157
± 0.146 in.Hg) or above, check that there is continuity between
terminals.
(b) Check that there is not continuity between terminals with
no vacuum.
If operation is not as specified, replace the sensor

So far so good, but with some numbers, this gives a value of vacuum pressure of approximately 400 mm of water! What is well above the range of commercial sensors Mann-Hummel for example, that come with larger scale in about 80 mm of water.

Therefore, light shows: dirty filter originally mounted this would give us warning when the filter is terribly dirty ... Is there anyone who has checked?
Thank you.

 

[IndroCruise]

The white square thing is the sensor, the wiring plugs in under neath it. 2 wires, if you short them you will probably activate your dash lamp(if there is a lamp in the socket)

 

[IndroCruise]

.... and if you find that the air filter warning light illuminates during hard acceleration, it could be that the short black hose connecting the white sensor to the filter case has slipped off the nipple. I found this immediately after a service. I guess it tells me that the air filter was inspected during the service!

 

[Chebas]

Seems to be an argentine post

I started trying to do it so, and then found out that Basko from AR also tried the same. I discover that the plug was there, the braket too, the cluster also had an empty light socket with the word "filter" in japanese, but after installing and original Toyota bulb, and shortcut the grey plug at the filter, the lifgt did not came up. I also test illuminating the window w/o the lamp, and seemed that there is no "air filter sensor icon" in it.
Any support on this, will be very appreciated.

Best and thanks.

Sebas

 

[Chebas]

Hi Guys, did someone face this issue (lamp socket OK, but no lamp window on the cluster)? Many thanks! and sorry for the insistence.

 

[Chebas]

Any clue?