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Author Topic: Did you know..... (2.6 MAF Info)  (Read 2616 times)

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Andy H

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Re: Did you know..... (2.6 MAF Info)
« Reply #15 on: 28 November 2009, 20:46:38 »
The air intake is just in front of the the radiator. When the car is moving forward it will get cool air but when you are reading live data your are probably stationary so an air temperature of 38 degC might be perfectly accurate :-/
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Marks DTM Calib

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Re: Did you know..... (2.6 MAF Info)
« Reply #16 on: 28 November 2009, 21:08:04 »
Quote
The air intake is just in front of the the radiator. When the car is moving forward it will get cool air but when you are reading live data your are probably stationary so an air temperature of 38 degC might be perfectly accurate :-/

should be closer to ambient with the engine running....would be higher due to heat soak if the engine was stopped
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Andy H

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Re: Did you know..... (2.6 MAF Info)
« Reply #17 on: 28 November 2009, 21:44:44 »
Quote
Quote
The air intake is just in front of the the radiator. When the car is moving forward it will get cool air but when you are reading live data your are probably stationary so an air temperature of 38 degC might be perfectly accurate :-/

should be closer to ambient with the engine running....would be higher due to heat soak if the engine was stopped
Just occurred to me that as the Omega runs two fans if the Climate system wants them so you do get airflow even when the car is stationary.

Don't know if Big_Rogers fans were running :-/
« Last Edit: 28 November 2009, 21:45:50 by andyh »
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Big_Roger

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Re: Did you know..... (2.6 MAF Info)
« Reply #18 on: 29 November 2009, 12:56:30 »
Hi,
I understood from the reply by Marks DTM that the MAF incorporated it's own air intake temperature. This is what I thought would be giving the actual engine air intake temperature for the ECU to perform it's calculations on air mass entering the engine.

I am aware of the sensor just in front of radiator to give the reading on the Dashboard.

Roger
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Andy H

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Re: Did you know..... (2.6 MAF Info)
« Reply #19 on: 29 November 2009, 14:25:35 »
Quote
Hi,
I understood from the reply by Marks DTM that the MAF incorporated it's own air intake temperature. This is what I thought would be giving the actual engine air intake temperature for the ECU to perform it's calculations on air mass entering the engine.

I am aware of the sensor just in front of radiator to give the reading on the Dashboard.

Roger
That is true, I was pondering on whether the air drawn into the air filter and then through the MAF was being heated up due to the proximity of the air intake to the front of the engine radiator.

When you lift the bonnet on a facelift the air intake is right in front of the radiator, it isn't so easy to see on the pre-facelift (unless you take the grille off).
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