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gmmafcompat [2010/03/25 12:58] twdorris |
gmmafcompat [2010/03/25 13:00] twdorris |
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====== GM MAF Compatibility ====== | ====== GM MAF Compatibility ====== | ||
- | {{ http://www.ecmtuning.com/images/photos/sidebyside.jpg?317x222}}This page is intended to illustrate which GM MAF sensors work with our GM MAF cable and which do not. Please refer to the image to the right (**click image to enlarge**). | ||
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**NOTE:** As of 3/15/2010, our cables have been modified to work with these GM MAF "copies". But we still don't like them given their different behavior and lack of proper honeycombs. | **NOTE:** As of 3/15/2010, our cables have been modified to work with these GM MAF "copies". But we still don't like them given their different behavior and lack of proper honeycombs. | ||
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+ | {{ http://www.ecmtuning.com/images/photos/sidebyside.jpg?317x222}}This page is intended to illustrate which GM MAF sensors work with our GM MAF cable and which do not. Please refer to the image to the right (**click image to enlarge**). | ||
The sensor on the left was pulled from an actual GM car. The sensor on the right appears to be a manufactured copy of some sort. | The sensor on the left was pulled from an actual GM car. The sensor on the right appears to be a manufactured copy of some sort. | ||
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The first thing you'll notice is that the GM sensor has a real honeycomb screen intended to straighten the airflow through the metering elements. The aftermarket sensor simply has a chicken wire type screen that seems to only provide some crude protection from debris but does nothing to actually straighten the airflow. | The first thing you'll notice is that the GM sensor has a real honeycomb screen intended to straighten the airflow through the metering elements. The aftermarket sensor simply has a chicken wire type screen that seems to only provide some crude protection from debris but does nothing to actually straighten the airflow. | ||
- | The second thing you'll notice is that the one on the left works with our GM MAF cable, but the one on the right does not. | + | The second thing you'll notice is that the one on the left works with our GM MAF cable, but the one on the right does not (see **NOTE** above). |
This gets a little more complicated, but the core problem has to do with some electrical characteristics that are different between these two sensors. Refer to the images below (again, **click image to enlarge**). | This gets a little more complicated, but the core problem has to do with some electrical characteristics that are different between these two sensors. Refer to the images below (again, **click image to enlarge**). |