MS2-Extra
Miata, DSM 4g63 Manual
(4/2 CAS)
Only for use with the MS2-Extra code (HC9S12C64 based microprocessor - MS2 Daughter Board)
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MS2-Extra
Miata, DSM 4g63 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 standard 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
4G63 (Miata, DSM 4G63 with 4/2 CAS)
Wiring Diagram for 4 slot CAS Sensor -- Wiring for 2 slot CAS sensor -- Schematic -- MegaTune Settings
Example CAS:
Only available in MS2/Extra 2.x codes. Tested ok 18th
April 2007.
You must set number of cylinders to 4. Can be run as single coil, wasted spark
or coil on plug.
V3.0 Internal Wiring V2.2
See HERE
Input Mods for Outer (4) slot sensor (See HERE for second
sensor wiring)
Output Mods for V3.0 PCB
For more options on Spark Outputs see HERE
V2.2 Internal Wiring
Input Mods for Outter (4) slot sensor (See HERE
for second sensor wiring)
Output Mods for V2.2 PCB
For more options on Spark Outputs see HERE
Second Trigger Input (2 slot Sensor on CAS)
Second Hall Sensor Circuit - this needs to be built for Both V3.0 and V2.2 Boards.
2 slot sensor input
for CAS on pin3 of the DB37 connector on a V3.0 PCB
2 slot sensor input for CAS on pin29 of the DB37 connector on a V2.2 PCB
You must set number of cylinders to 4.
The code is setup for the stock CAS position of 10deg at the end of the slot. Because the sizes of the vanes/slots are used for syncronisation, the sizes are built into the code and cannot be adjusted.
For Control with the stock Ignitor then use Spark Output Going Low (Normal) but if using VB921's to directly drive the coils then ensure this is set to Going High (Inverted)
Spark outputs come on D14 (single); D14 and D16 (wasted) This is shown above for stock ignitors; D14, D16, D15, JS11 (coil on plug)
For more options on Spark Outputs see HERE
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.