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Old 11-27-2015, 08:17 PM   #1
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Default MS2PNP & Sequential Injection

So I have a 1993 California based Miata, which apparently comes from the factory with sequential injection.

I was wondering if any additional wiring was necessary in that case to use the sequential features, or if I just change the settings on the tune?

I am using the MSPnP2/Extra.

According to megasquirts website, the unit I bought should have come preassembled to accept the sequential injection; "Up to 4 fuel injector channels with individual trim tables available in sequential models."

Edit:
So after some more review I've ran into the fact that I do indeed need to do a wiring change, though I am a bit confused about which jumpers need to go where?

Also can I retain the factory wiring which is currently utilizing the z2 and y2 slots?

Last edited by HexRX; 11-27-2015 at 11:02 PM.
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Old 11-30-2015, 12:55 PM   #2
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For this particular application, all you have to do is enable it in software. The car is already wired for sequential injection.
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Old 11-30-2015, 03:05 PM   #3
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Originally Posted by Matt Cramer View Post
For this particular application, all you have to do is enable it in software. The car is already wired for sequential injection.
So I can disregard this post, and leave it wired as is and jumpers in their original position?

Thank you.

https://www.miataturbo.net/mspnp-55/1990-miata-sequential-injection-wiring-85265/
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Old 12-02-2015, 12:20 PM   #4
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Right. If you are using peak and hold injectors, you will want to remove the Inj Qty jumpers from outputs A and C.
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Old 12-02-2015, 02:56 PM   #5
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Quote:
Originally Posted by Matt Cramer View Post
Right. If you are using peak and hold injectors, you will want to remove the Inj Qty jumpers from outputs A and C.
Thank you Matt.
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