The Official MegaSquirt FAQ
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The Official MegaSquirt FAQ - 1/18/2007 3:31:40 PM
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03neonRT
Posts: 6098
Joined: 11/10/2005
From: Toledo, Ohio
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1. What is MegaSquirt?
MS is a full standalone fuel and spark controller. MS can completely replace your stock PCM, however you will need additional relays and wiring etc. to power all of your accessories. For this reason most people used the stock PCM to power all the accessories and sensors, while MS takes over engine control.
2. Where can I get one?
A list of all current vendors can be found here: http://www.megamanual.com/v22manual/mintro.htm#group. You can buy the MS unit prebuilt, or get an unassembled kit and do it yourself. It is not hard to assemble the MS, even if you have not had much experience with electronics. If you are patient, not afraid to learn, and willing to do a little (or a lot ) research, then you have what it takes to build and install a MegaSquirt system.
3. Ok great. Where do I start?
First things first. Read the FAQ on MSefi.com found here: http://www.megamanual.com/
Then read through the MegaManual. This contains all the details of how the MS works, assembly instructions, setup and install guidlines, tuning, wiring... it's all here: http://www.megamanual.com/v22manual/mtabcon.htm
Since most of us 2gners will be using the MSnS-E "extra" code (the only code that will run fuel and spark on Neons), the MSextra manual will also be very informative: http://www.msextra.com/manuals/MS_Extra_Manual_Index.htm
4. Specifically, what do I need to run MS on my Neon?
Option A: Unassembled kit (recommend diyautotune.com)
- MS1 v3.0 pcb
- Two VB921 high current ignition coil drivers (most kits come with one VB921 included, so you may just need to get one additional transistor)
- GM IAT and CLT sensors
- Wiring harness
- Stimulator (for powering and testing your MS before hooking it up to your car)
Option B: Prebuilt unit (recommend rs-autosport.com)
- When ordering the ECU from rs-autosport specify the follow options:
Configuration: Neon/420A
Fan control output: No (assuming stock ECM still controlls radiator fan)
Firmware: Latest stable release of MSnS-E
Map sensor: Your preference
Tachometer signal output: No (assuming no additional tach signal is needed. i.e. you're not adding any other hardware that requires a tach signal).
Upgrade to MegaSquirt II: Standard MS-1 controller
You will still need:
- GM IAT and CLT sensors
- Wiring Harness
- Stimulator (optional)
5. Firmware
The latest version of MSnS-E firmware can be downloaded here: http://megasquirt.sf.net/extra/ by clicking "download latest". This link also cantains all the info about the features of the "Extra" code and info about the Neon Crank Decoder, as well as hardware modifications required to control the coilpack. (the site says for pre-NGC Neons only, but MS will work on NGC cars and read the NGC crank trigger wheel)
The NGC code can be downloaded here:
http://megasquirt.texasneons.org/029v_ngc3.zip
FAQ Created by "turbodudey"
< Message edited by 03neonRT -- 8/18/2007 10:45:42 AM >
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- 2003 R/T: COMP 400 Cam, MSD Wires, K&N CAI, Eibach Prokit, Tokico Blues, Hotchkis Tuning Sway Bars, Vibrant F/R Strut Bars, Unorthodox UDP, Maddog 72% STS, JonnyMopar Solid Shifter/Booger Bushings, Prothane MM's, Exel Speeds, Toyo PX4's, RB1 GPS System
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RE: MegaSquirt FAQ - 2/1/2007 6:57:29 PM
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Kapitald
Posts: 649
Joined: 12/14/2006
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Whats average install time on megasquirt....DIY???
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04 Electric Blue Srt-4..CAI..8.5mm crane wires..front and rear strut bars..motor mount inserts..agp wastegate..manual in cabin boost controller..maddog 72% sts..greddy occ..bigger intercooler with hardpipes..hks sequential bov..possibly stage1 cam
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RE: MegaSquirt FAQ - 2/7/2007 8:35:01 PM
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03neonRT
Posts: 6098
Joined: 11/10/2005
From: Toledo, Ohio
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quote:
ORIGINAL: Kapitald
Whats average install time on megasquirt....DIY???
It all depends on your skill level with electronics and wiring really...the entire install could easily be done in a day at a steady pace. The actual assembly of the MS unit will also depend on how skilled you are with electronics.
_____________________________
- 2003 R/T: COMP 400 Cam, MSD Wires, K&N CAI, Eibach Prokit, Tokico Blues, Hotchkis Tuning Sway Bars, Vibrant F/R Strut Bars, Unorthodox UDP, Maddog 72% STS, JonnyMopar Solid Shifter/Booger Bushings, Prothane MM's, Exel Speeds, Toyo PX4's, RB1 GPS System
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RE: MegaSquirt FAQ - 2/28/2007 10:02:50 PM
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moparx12
Posts: 37
Joined: 2/11/2007
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03neonRT,
i read on the megasquirt website that you can run up to 20 lbs of boost... on the regular megasquirt 1. and that you can only run the spark code with ms1 not ms2... does that mean that i couldnt run 25 lbs of boost in my car with the ms1?
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RE: MegaSquirt FAQ - 3/1/2007 11:09:13 PM
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spikeymikey87
Posts: 2358
Joined: 1/9/2006
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if you get the 4 bar map sensor you can run over 50 ( i believe 58) or maybe im making that up but deff more than 20 and yes get teh ms1 ms2 sucks balls because its a pain to work with neons
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Megasquirtin all over your face
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RE: MegaSquirt FAQ - 3/4/2007 12:44:03 PM
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03neonRT
Posts: 6098
Joined: 11/10/2005
From: Toledo, Ohio
Status: offline
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quote:
ORIGINAL: spikeymikey87
if you get the 4 bar map sensor you can run over 50 ( i believe 58) or maybe im making that up but deff more than 20 and yes get teh ms1 ms2 sucks balls because its a pain to work with neons
You would be correct good sir...on both accounts. MS2 = Gay...at least for the moment  .
_____________________________
- 2003 R/T: COMP 400 Cam, MSD Wires, K&N CAI, Eibach Prokit, Tokico Blues, Hotchkis Tuning Sway Bars, Vibrant F/R Strut Bars, Unorthodox UDP, Maddog 72% STS, JonnyMopar Solid Shifter/Booger Bushings, Prothane MM's, Exel Speeds, Toyo PX4's, RB1 GPS System
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RE: The Official MegaSquirt FAQ - 3/6/2007 7:02:06 PM
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03neonRT
Posts: 6098
Joined: 11/10/2005
From: Toledo, Ohio
Status: offline
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I dont think it matters what MegaStim version your using, and the only thing I see missing for the actual MS unit is you'll need a second VB921 Ignition Coil Driver. As for the intake sensor, you should be fine with the open element, but I'm not 100% sure...
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- 2003 R/T: COMP 400 Cam, MSD Wires, K&N CAI, Eibach Prokit, Tokico Blues, Hotchkis Tuning Sway Bars, Vibrant F/R Strut Bars, Unorthodox UDP, Maddog 72% STS, JonnyMopar Solid Shifter/Booger Bushings, Prothane MM's, Exel Speeds, Toyo PX4's, RB1 GPS System
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RE: The Official MegaSquirt FAQ - 3/7/2007 9:13:00 AM
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moparx12
Posts: 37
Joined: 2/11/2007
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i believe the pcb3.0 kit comes with one already like you said in the first post of this thread... so i just added one more to the cart thinking that one already came with the kit.
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