MS2-Extra
Miata Manual
(1999-2000)
Only for use with the MS2-Extra code (HC9S12C64 based microprocessor - MS2 Daughter Board)
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MS2-Extra
Miata Manual Only for use with the MS2-Extra code (HC9S12C64 based microprocessor - MS2 Daughter Board) |
NOTE: Please ensure you have one of these daughter boards inside your ECU before continuing. If you have a black microprocessor, then you have an MS1 and these manuals are NOT for MS1 see here for MS1-Extra Manuals
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Warning
for E-Bay buyers!!
Please see the Official Suppliers list before buying through E-Bay. This is there for your protection. |
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Please Note: All of these instructions / diagrams are to be used at your own risk, like most things there is more than one way to do the same thing, what we have tried to do is to offer a method that we have tested or that others have tested for us. No warranty expressed or implied. Use at your own risk. |
Main Index of MS2-Extra Manuals
Layout of Components -- Suggested Supply points -- List of common components and part numbers
Internal Wiring for Crank Sensor -- Internal Wiring for CAM sensor -- Settings
Please Note: THIS CODE
IS NOT TESTED
(Currently believed to be incomplete) for this type of setup!!!!!
Spark outputs come on D14 and D16, see HERE for options on driving the coils.
V3.0 PCB (Crank Sensor)
For Second Input (CAM Sensor) see HERE
V2.2 PCB (Crank Sensor)
For Second Input (CAM Sensor) see HERE
The circuit below will need to be made for a V2.2 board for the Crank Sensor
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DigiKey part
numbers:
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Farnell
part numbers
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1K resistor = 1.0KQBK-ND |
1K resistor = 509-164 |
Second Trigger Input (CAM Sensor)
Second VR conditioner Circuit - this needs to be built.
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DigiKey part
numbers:
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Farnell
part numbers
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1K resistor = 1.0KQBK-ND |
1K resistor = 509-164 |
Please note: Above part numbers will need checking, some components will come with a minimum order in multiples of 5 and 10.
Second VR sensor input
on pin3 of the DB37 connector on a V3.0 PCB
Second VR sensor input on pin25 of the DB37 connector on a V2.2 PCB
If using VB921's for direct control over the coils then set Spark Output to Going High (Inverted) and set dwell to Standard and 3.2mS as Maximum. Also set 5.0mS as Cranking Dwell.
Spark outputs come on D14 and D16, see HERE for options on driving the coils.
Suggested points for Supplies inside the V3.0 ECU
List of component part numbers used in the ignition section:
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DigiKey part
numbers:
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Farnell
part numbers
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2N2222A = 497-2598-5-ND |
2N2222A = 920-7120 |
Please note: Above part numbers will need checking, some components will come with a minimum order in multiples of 5 and 10.
If
you have a question, comment, or suggestion for this FAQ please post it on
the forum.
No part of this manual may be reproduced or changed without written permission from James Murray, Ken Culver and Philip Ringwood.