Intake Temp Sensor
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From: Asia
Intake Temp Sensor
Any Ideal where should we install the Air Intake Temp sensor? Before or After the Throttle?...
please let me know which are the best location for the Air Intake temp? and Why that is the best location....
please let me know which are the best location for the Air Intake temp? and Why that is the best location....
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Joined: Oct 2007
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From: Yorkshire
As above is correct, for some strange reason when i bought my car mine was installed in the inner wing.
I've since moved it to about 2 inches before the throttle body but i still only get a few degrees rise in the intake temp.
Maybe my cooler and this cold weather is better than i thought. The most i've seen is around 23 degrees.
I've since moved it to about 2 inches before the throttle body but i still only get a few degrees rise in the intake temp.
Maybe my cooler and this cold weather is better than i thought. The most i've seen is around 23 degrees.
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From: Yorkshire
It depends where inside the plenum you mount it i guess, it could effect airflow slightly or could be in a dead area where the readings might not be accurate, also the plenum will heatsoak more (could be seen as a good or bad thing i suppose).
First I have found the PFC temp sensor is way too slow. I have tried the fast acting GM probe and it reads very similar as far as scale. And it lightening fast.
There isnt much difference before or after TB. The measured temp is pretty much the same. There is a difference before or after turbo. factory temp sensor is before turbo. This tells ecu what intake temp air temp is. This can be used usefully. As outside air gets hotter so does air entering into engine.
The manual tells you to install the sensor in the intake manifold. This to me is a far better place. Now the actual air temp going into the engine is recorded.This is far more useful when the ecu is setup correctly. I use alky injection and I want the ecu to know whether or not the alky is flowing. If alky is not flowing you can add fuel and take away some timing as sort of a simple failsafe. But you cant do this on the handheld. You have to have tuning software.
There isnt much difference before or after TB. The measured temp is pretty much the same. There is a difference before or after turbo. factory temp sensor is before turbo. This tells ecu what intake temp air temp is. This can be used usefully. As outside air gets hotter so does air entering into engine.
The manual tells you to install the sensor in the intake manifold. This to me is a far better place. Now the actual air temp going into the engine is recorded.This is far more useful when the ecu is setup correctly. I use alky injection and I want the ecu to know whether or not the alky is flowing. If alky is not flowing you can add fuel and take away some timing as sort of a simple failsafe. But you cant do this on the handheld. You have to have tuning software.
Newbie
Joined: Oct 2007
Posts: 33
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From: Yorkshire
First I have found the PFC temp sensor is way too slow. I have tried the fast acting GM probe and it reads very similar as far as scale. And it lightening fast.
There isnt much difference before or after TB. The measured temp is pretty much the same. There is a difference before or after turbo. factory temp sensor is before turbo. This tells ecu what intake temp air temp is. This can be used usefully. As outside air gets hotter so does air entering into engine.
The manual tells you to install the sensor in the intake manifold. This to me is a far better place. Now the actual air temp going into the engine is recorded.This is far more useful when the ecu is setup correctly. I use alky injection and I want the ecu to know whether or not the alky is flowing. If alky is not flowing you can add fuel and take away some timing as sort of a simple failsafe. But you cant do this on the handheld. You have to have tuning software.
There isnt much difference before or after TB. The measured temp is pretty much the same. There is a difference before or after turbo. factory temp sensor is before turbo. This tells ecu what intake temp air temp is. This can be used usefully. As outside air gets hotter so does air entering into engine.
The manual tells you to install the sensor in the intake manifold. This to me is a far better place. Now the actual air temp going into the engine is recorded.This is far more useful when the ecu is setup correctly. I use alky injection and I want the ecu to know whether or not the alky is flowing. If alky is not flowing you can add fuel and take away some timing as sort of a simple failsafe. But you cant do this on the handheld. You have to have tuning software.
I think its time for a new MAP and a new AIT sensor.
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From: Asia
IF the temp sensor install before Blow Off?.
I've seen this done before.
It depends where inside the plenum you mount it i guess, it could effect airflow slightly or could be in a dead area where the readings might not be accurate, also the plenum will heatsoak more (could be seen as a good or bad thing i suppose).
It depends where inside the plenum you mount it i guess, it could effect airflow slightly or could be in a dead area where the readings might not be accurate, also the plenum will heatsoak more (could be seen as a good or bad thing i suppose).
To get best result is to install the Temp into Manifold to know the correct temp that go into the Manifold, but most of the time I found out that the intake Manifold have some oil inside... the Black stuff..and will that cost the problem to the Temp Sensor?... Or Even Damage the Sensor? in long term..
any comment?
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From: Fallon NV, Bellingham WA, Angeles City PI
Just for INFO:
I have the Blits RVI-T and it can read AIT from the ecu via the ODB port on my 05 VIII.....
I have the Blits RVI-T and it can read AIT from the ecu via the ODB port on my 05 VIII.....
Last edited by jenx1976; Nov 4, 2007 at 04:59 PM.
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Joined: Oct 2007
Posts: 33
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From: Yorkshire
If the Temp sensor Install before Blow off, will that show incorrect Information on the Temp going into the Eng?.
To get best result is to install the Temp into Manifold to know the correct temp that go into the Manifold, but most of the time I found out that the intake Manifold have some oil inside... the Black stuff..and will that cost the problem to the Temp Sensor?... Or Even Damage the Sensor? in long term..
any comment?
To get best result is to install the Temp into Manifold to know the correct temp that go into the Manifold, but most of the time I found out that the intake Manifold have some oil inside... the Black stuff..and will that cost the problem to the Temp Sensor?... Or Even Damage the Sensor? in long term..
any comment?
My sensor is slow, and to be honest, my AIT are never really into the range where i'd use the ECU to trim the fueling anyway.
