gmmafcompat
Differences
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gmmafcompat [2010/03/25 12:59] twdorris |
gmmafcompat [2024/03/15 11:16] |
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| - | ====== GM MAF Compatibility ====== | ||
| - | **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**). | ||
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| - | 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 two are similar in many ways, but different in many others. Some are trivial, some are not. | ||
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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. | ||
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| - | 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. | ||
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| - | 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**). | ||
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| - | {{http://www.ecmtuning.com/images/photos/gmsensor.png?401x217}}{{http://www.ecmtuning.com/images/photos/newsensor.png?390x217}} | ||
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| - | As you can see, the two signals are similar, but different enough to cause compatibility problems. We do not know how well these aftermarket sensors work with a real GM ECU. We suspect that they probably work fine, but they definitely do not work with our cables. | ||
gmmafcompat.txt ยท Last modified: 2024/03/15 11:16 (external edit)
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