Drivetrain Picture of map sensor?
Will that new adapter will be cheaper or in the same price range as the other one available?
BTW to the OP the numbers on the TMaps sensor on the intercooler pipe are:
0 261 230 134
V 7535069 80-03
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From: terry@burgertuning.com
Thanks!
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From: terry@burgertuning.com
I have a feeling the two MAP sensors are used for different things. One is probably used for the boost controller and the other [or both] used for the BOV operation. I would enjoy teasing both signals, seeing how the ECU uses them! I'm sure UNIchip already has a solid understanding of them, but it's also their job!
bypass is electrical...
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From: Aventura, Florida
The bypass is electric just like the dv on the VW 2.0ts. Also, I'd be very surprised if bmw put two map sensors/ iat on the car. I think one is IAT and one is map. Also, your theory of one controlling map under vacuum and one controlling it under boost, why would it do that? The sensors are going to read near the same thing anyway, they're a foot apart.
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From: terry@burgertuning.com
The bypass is electric just like the dv on the VW 2.0ts. Also, I'd be very surprised if bmw put two map sensors/ iat on the car. I think one is IAT and one is map. Also, your theory of one controlling map under vacuum and one controlling it under boost, why would it do that? The sensors are going to read near the same thing anyway, they're a foot apart.
The one before the throttle body is called a tmap sensor, meaning it reads boost and IAT. On the 335i it is used to control the boost system, as well as air density calculations for tuning when the manifold sensor is out of vacuum. We'll see if the R56 is similar once I probe the sensors.
Last edited by Terry @ BMS; Jan 25, 2008 at 07:47 PM.
The bypass is electric just like the dv on the VW 2.0ts. Also, I'd be very surprised if bmw put two map sensors/ iat on the car. I think one is IAT and one is map. Also, your theory of one controlling map under vacuum and one controlling it under boost, why would it do that? The sensors are going to read near the same thing anyway, they're a foot apart.
That is how the BMW 335i works, anyway. On the 335i the manifold map sensor isn't calibrated to read boost, only vacuum.
The one before the throttle body is called a tmap sensor, meaning it reads boost and IAT. On the 335i it is used to control the boost system, as well as air density calculations for tuning when the manifold sensor is out of vacuum. We'll see if the R56 is similar once I probe the sensors.
The one before the throttle body is called a tmap sensor, meaning it reads boost and IAT. On the 335i it is used to control the boost system, as well as air density calculations for tuning when the manifold sensor is out of vacuum. We'll see if the R56 is similar once I probe the sensors.
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From: terry@burgertuning.com
My R56 tuning dream would be that the wideband o2 sensor plays a significant role in wide open throttle fuel enrichment like it does with the 335i.
Last edited by Terry @ BMS; Jan 26, 2008 at 12:38 PM.
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From: terry@burgertuning.com
But the US R56 might run fuel off the wideband also, I'll have to see!
Last edited by Terry @ BMS; Jan 27, 2008 at 09:12 AM.
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