Honda/Acura Tech Honda tech discussion.

Hondas MAP sensor......

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Old Feb 18, 2002 | 05:42 AM
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Is a stock honda MAP sensor a 2bar MAP sensor. I am just curious......

As for the S-AFC if you are going turbo there is no need to have a S-AFC. Once you are on boost it wont be doing any adjustment. The reason that the s-afc wont work with the saturn is that our engine uses a 1bar MAP sensor. Hondas use somthing bigger then a 1bar more like a 2bar. This is why they must use check valves on their MAP sensor. We dont have to do that. 1bar=0psi (or 14.7psia). Our computer never sees boost. Even with the S-AFC it can only ajust with in the limits of the 1bar map sensor. Adding more voltage will not to anything. The S-AFC works by intercepting the signal from the stock MAP sensor it then gives the computer a new reading.

Is this pretty much true?
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Old Feb 18, 2002 | 12:02 PM
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Shit!
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Old Feb 18, 2002 | 02:45 PM
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Well my car is a GM and GM does make 2 and 3 bar MAP sensors what would happen if I used one of those?
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Old Feb 18, 2002 | 04:47 PM
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you could read up to 3 bar of boost/vaccuum. GM 3 bar is good guy on honda-tech had some questions installing it. (b18bturbo if you want to know john)
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Old Feb 18, 2002 | 06:08 PM
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but what GM cars come with a 3 bar MAP they all mount the same its just I am not sure which cars came with them. Thanks...
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Old Feb 18, 2002 | 06:46 PM
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probably the turbo diesel ones. im not sure might want to lookup some GMC sites for the 3bar map sensor.
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