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MAP Sensor Check Valve?

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Old 10-08-07, 09:52 PM
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MAP Sensor Check Valve?
There is a one way check valve at the MAP sensor, which I don't under stand. It is designed to read both boost and vacuum...so why the check valve. Secondly, my check valve has flow in it both ways... and it sounds like a pcv when you shake it... Is my check valve bad>? Should it not be there at all? Which way should it aim?
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Old 10-08-07, 09:55 PM
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that's not the check valve.it is just a filter.
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Old 10-08-07, 10:02 PM
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Its a filter to keep out gas/oil I believe.
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Old 10-08-07, 10:29 PM
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I believe the filter is to prevent fuel and oil from making it to the MAF and damaging its inner workings.
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Old 10-08-07, 11:33 PM
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Its just a filter. Without it the map sensor will eventually die. A new map sensor is something stupid like $400.
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Old 10-08-07, 11:36 PM
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Originally Posted by Rotary Experiment Seven
Its just a filter. Without it the map sensor will eventually die. A new map sensor is something stupid like $400.
http://www.rx7store.net/product_p/gm3bar.htm

GM3bar MAP sensor for FD = $75
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Old 10-09-07, 09:11 AM
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Originally Posted by SINxSELEKTAH
http://www.rx7store.net/product_p/gm3bar.htm

GM3bar MAP sensor for FD = $75
That only works if you already have a standalone ECU.
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