MS2-Extra Neon/420A Manual
Only for use with the MS2-Extra code (HC9S12C64 based microprocessor - MS2 Daughter Board)
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MS2-Extra Neon/420A 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
Neon/420A
Wiring for the Neon / 420A Decoder -- Settings
Chrysler/Dodge/Plymouth
The "Neon/420A" mode theoretically supports the following vehicles
when equipped with a 2.0 or 2.4 4cylinder Chrysler engine.
"NS" body models:
1996-2000 Chrysler Town and Country
1996-2000 Dodge Caravan/Grand Caravan
1996-2000 Plymouth Voyager/Grand Voyager
"JA" body models:
1995-02 Chrysler Cirrus
1995-02 Dodge Stratus
1996-2000 Plymouth Breeze
"JX" body models:
1996-02 Chrysler Sebring Convertible
"PL" body models:
1995-02 Dodge Neon
1995-2001 Plymouth Neon
"PT" body models:
01-02 Chrysler PT Cruiser
"FJ" body models:
1995-02 Chrysler Sebring Coupe
1995-2000 Dodge Avenger
Wiring for the Neon / 420A Decoder
Circuit Diagram for V3.0 PCB:
Wire the Megasquirts ECU's input section up as per this diagram in the input wiring section:
Circuit Diagram for V2.2 PCB:
Wire the Megasquirts ECU's input section up as per this diagram in the input wiring section:
Setting the Software for Neon/420A
Ensure the settings are as above
Spark output comes 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.