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MS PNP Pro 90-93 VVT/Knock/Boost connector pinout

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MS PNP Pro 90-93 VVT/Knock/Boost connector pinout

 
Old 09-05-2017, 07:11 PM
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Default MS PNP Pro 90-93 VVT/Knock/Boost connector pinout

I have a Megasquirt PNP Pro ECU on my 1990 Miata. I am using it to run a turbo VVT engine in the NA Chassis. I had a few questions though. Looking at the MegaSquirt PNP Pro Documentation found here: MegaSquirtPNP by DIYAutoTune.com it shows that there is 26 pin "rear option connector", but there is also two additional connectors which are connector 2 (12 pin) and 3 (16 pin). I see that the "rear option connector" has Pin A setup for Sensor Ground and Pin B is Knock Sensor, but what is confusing is that Pin 3K on connector 3 and Pin 2F on Connector 2 also are labeled as Sensor Ground and Knock Sensor. So I am not sure which of the connectors to splice the knock sensor wires to. Same thing with the VVT signal wire. Rear option connector says VVT goes on Pin P, but Pin 3J on connector 3 is also labeled for VVT. If someone could please explain this to me I would really appreciate it. Same thing goes with Boost control. It is labeled on multiple connectors so not sure which one of the three to actually splice into.

Thanks!

-David
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Old 09-07-2017, 10:50 AM
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Got my answer on the msextra forums. Quoting Matt Cramer, "They're the same connections, just brought out to multiple connectors to give you several options for how you wire it."

Posting this in case anyone else has the same question later on.
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