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Hello, I have a D15b engine. My understanding on this engine is that it has 2 stages of vetc two separate vtec solinoids. My question is if I use a P28 Ecu would it engage the 2 stages of vtec properly. It seems like since the p28 is only programed as a single vtec I'm not sure.🙃
 

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P28 is for simple single stage vtec, 16v low profile moving to 16v high profile. 2 fuel and ignition maps.

The D15B wants an ecu that does 12v, 16v low, and 16v high. 3 fuel and ignition maps.


So outside of finding the correct ecu, which would be quite difficult these days, you could do something like speeduino, megasquirt, or haltech, which each come with their own price teirs and features.
 
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