I am opting to run sequential injection rather than bank-fire and will use an MSD box to fire the coil. Engine Management Systems. 00 38NPT-Bung_A: Aluminum bung for IAT sensor (Also available in stainless steel) $6. I am opting to run sequential injection rather than bank-fire and will use an MSD box to fire the coil. MS3X + 4 bar mapsensor + harness. I have a couple questions I have some resistors to be able to run TFI as well as the ms3x card so I can easily run my PWM IAC and my A/C. Install TunerStudio and Megalogviewer software onto you computer. Just swap wire from fidle to inj1 or 2, install jp7 jumper and put 1k. I have a MS3 with expansion board MS3X. Pull Spare Wires from Megasquirt Harnesses overall cost is a big factor to me. I spent a lot of time determining wire gauge and connector type needed to safely carry the loads. Today's Posts; Member List; Calendar; Forum; E30 Classified Forums; For Sale & Wanted; Parts For Sale; If this is your first visit, be sure to check out the FAQ by clicking the link above. Joined: Mon Sep 19, 2011 6:10 pm. To make sure you can't accidentally switch the upper and lower harnesses, the MS3X harness uses a male DB37 connector instead of a female one. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . Top. . Use a relay board and one of Mario's harnesses and you'll have a nice clean factory install. To wire the fuel pump relay, connect pin 85 to the purple wire from the Megasquirt harness. 5″ x 3. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. Add to wishlist. Would 18 gauge be alright to run from the MS. ( 1 question) 5 out of 5 based on 4 customer ratings. We’ve custom printed these to include all the inputs and outputs on the expansion board. MegaSquirt MS3X Wiring Pigtail for full sequential fuel injection and ignition, as well as tons of other I/O (Dual Stage Nitrous, 2nd O2 Sensor, Boost/Launch Control, etc)- as for tach output, it seems that I use wire number 26 from the ms3x db37 to the tach. SAYS IF HALL SENSOR. Connect pin 87 to a 12V connection on the fuse panel and install a 20A fuse in the corresponding slot. Also i a using the newest firmware on the ms3x, I believe it is 1. My original thought was that the only thing that could have change could have been wiring from jostling the harnesses around. . RX7 Series 2 13B Turbo. 99 Add to cart MegaSquirt 3 EMS System V3. Top. x See the Setting Up manual for more detail on version numbers. If you have any further information, contributions, or questions about this article, please contact us. 99. Wiring the engine harness to the MS harness has been pretty clear except for some uncertainties with the CKP input and what our setup is capable of. I'm less clear on whether its important to run the ground from MS to the engine (and thus back to the battery) or if I can simply take them to the battery via a nearby distribution block. 8′ of TXL High temp automotive grade wire. 3. MegaSquirt Wiring Harness - 8 Feet Long We've completely redesigned our wire harness to help you get your fuel injection installation right the first time with several new features to help make your installation as easy and reliable as possible:. 2 Megasquirt Installation; 2. Setup your vehicle wiring harness ensuring it is fused. The goal is to get the VE table to generate and AFR out the exhaust as close to the target AFR as possible. . 0 parallel install, full sequential, HPX MAF, Ford Ev6 47lb injectors, COP, custom 8 BIP373 box, E85 pump, teflon lined return style fuel system, 39 lb base fuel pressure, Twin Turbo @ 7lbs boost, Dual 4 port boost solenoids, Dual 14point7 widebandsPosted January 28, 2014. While this is generally OK for hall sensor use, our VR sensors output a far lower signal at low engine speeds and are far more susceptible to noise. 57 with MS1/Extra firmware. I was poking around tuner studio and noticed that I had the ability to set the firing order once I. The ground. I connected the "signal" grounds to the terminal where I ground all of the megasquirt grounds. MegaSquirt 3 Engine Management System w/PCB3. D LS truck coils (round w/ heatsink style). 00 MS3X-Hrn: 8' MS3X wiring harness $22. MegaSquirt MS3X Wiring Bundle – 23″ 5 out of 5 $ 29. 2. Where is this harness manufactured? It is assembled in the USA. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. And used MS harness wire #30 to control the IAC valve. Color coded wiring with labeling printed on the wire every 6 inches — no paper tags here! All wiring is pre-crimped (NOT solder cupped!) to the DB37. I have a m50 NON-Vanos motor with a Motronic 3. The wiring harness connector is sold separately as we give you a choice of a ready-to-crimp connector, or a pre-crimped pigtail. Back then I installed the TIP122 as described in the manual page 44-45. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. Connect a 0. 00. This version of the documentation applies to: •. DB37 Solder Cup Connector for MS3X $ 8. Note that you will still need our regular MSPiggy for the main board DB37 – this is just the MS3X harness. 3. Post by Bahooki » Thu Feb 01, 2018 5:39 pm. 57 mainboard as it uses the same driver as the MS3X. 18" pigtail harness for VVTuner variable valve timing controller. MegaSquirt MS3X Wiring Harness – 8 feet 8′ of TXL High temp automotive grade wire. Wiring harnesses at carid. Color coded wiring with labeling printed on. -. The versatile MicroSquirt with 8′ Harness: Standalone Engine Management System, Transmission Controller or CAN I/O Expansion Module- Version 3. Boscobel, WI 53805. Includes complete Universal 8′ Flying Lead Harness. I'm less clear on whether its important to run the ground from MS to the engine (and thus back to the battery) or if I can simply take them to the battery via a nearby distribution block. 4. 8′ MegaSquirt Wiring Harness for MS3X. Alot of time the shield wire of the crank wiring is left untouched, but it needs to be grounded. SAYS IF HALL SENSOR. 57 board, the ms3x wiring harness, 7mgte CPS and am getting decent cam/crank signal(not full sync yet, however I have full sync at crank and up to around 1000rpm, but that's another topic). If you're out of MS3X outputs, you'll have to add mods to the main board. Ibrahim Nzioki On Twitter 2 Engine Harness Layout Since The Donor Was From An E36. 1 Overview; 2. Since my MS3X is already installed and running my 1997 Vortec 350ci Truck, all I have to do is splice into the factory wiring for the signal hopefully this will. MS3X/V3. 57 mainboard with MS3X as shown above running firmware MS3 1. I double checked my wiring and everything is still hooked up correctly. I even pulled the Ms out and made sure the jumper was installed for the cam input. This confuses me. At least that's what the wiring diagram that came with it says. 3 Wiring Harness The Megasquirt can be supplied with a "pigtail" wiring harness to form the basis of your own wiring. 1 ecu that is the vanos motor. My formula SAE team recently acquired an MS3X ecu which we want to start running on our CBR 600 f4i, and I'm in the process of building the wiring harness and hooking up electronics. ) 5. 57 and both complete wiring harnesses already wired for a coil on plug 3rz-fe motor. There is a recall on us crankps and they sell a wiring harness kit with it. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. 99. 24″ MegaSquirt Pigtail MS3X Harness $ 79. MegaSquirt 3 Engine Management System w/PCB3. Just like a short run of the MS3X harness, but with no DB37 connector. Connect MAP hose to full vacuum source. General Tech Forums. I connected my "PWR" grounds from the LS1 coils to the engine block on a short run of wire to keep them out of the wire loom. Color coded wiring with labeling printed on the wire every 6 inches. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here! External Ignition Wiring. consider it time to get rid of that ratty old stock harness and do up a new one. -. To make sure you can’t accidentally switch the upper and lower harnesses, the MS3X harness uses a male DB37 connector instead of a female one. 6 conversion. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . Anyone onto the questions. I connected the "signal" grounds to the terminal where I ground all of the megasquirt grounds. B1 (Relay Ground for Fan) 12v Switch 5vRef Grounds Dedicated Ground MS3X Board: Inj. Ls1 ecm wiring diagramMs3/ms3x/ls2- full sequential fuel and spark 2002 lincoln ls wiring diagram collectionLs430 harness clublexus netbook. x card will need to be able to manage a 1992 f150 4wd 351w with MAP efi? also i see diyauto tune sells wires for the ms wiring harness that is 20 gauge. 4 Crank / Cam Inputs; 2. Yeah, you need to test each coil in test mode to make sure they're even wired up correctly. (This is ohms law. Re: MS3 knock sensor wiring question. Ibrahim Nzioki On Twitter 2 Engine Harness Layout Since The Donor Was From An E36. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here! All wiring is pre-crimped (NOT solder cupped!) to the DB37 Heavy d. Note that the DIY Autotune wiring harness has a shielded wire – connect only the inner wire to this pin! Connect the E pin to pin 27. For input I've tried datalog in, tableswitch, and the other ground switching input that I can't recall at the moment. This version of the documentation applies to: • MS3 on a V3. MS3/x ground wiring. 2 general purpose on/off outputs – can be repurposed as spark outputs with switchable pull ups. 57: Install a 1K resistor in the R57 slot. 0: Solder a 1K resistor to a length of wire and connect it from TachSelect to S5. x card will need to be able to manage a 1992 f150 4wd 351w with MAP efi? also i see diyauto tune sells wires for the ms wiring harness that is 20 gauge. Megasquirt-3 with MS3X. Using FIDLE and Idle will certainly be ok with the V3. 3. 3. This wire will provide 12V power for the e-fan. 8′ MegaSquirt Wiring Harness for MS3X. the universal Terminator X 550-937 kit is like $1070. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. 4g63 with stock 1990 sensor. Add to Cart. Found it relatively cheaply at 4K. I'm setting up my wiring for my Dodge Van with 5. HOWEVER when using the test page it seems that I am STILL not getting any spark signal from the. SAYS IF HALL SENSOR. It's a bitch reading the spark wires. 2. I have just recevied a MS3 card and in anticipation of obtaining a MS3x, after reviewing the latest MS3x wiring schematic, pin 2 is now shown as a ground. Description. 1. 1. MegaSquirt MS3X Wiring Bundle – Length = 8′. I have a m50 NON-Vanos motor with a Motronic 3. Ls1 ecm wiring diagramCommodore vy ls1 vz ecu pcm vx loom outs diagrams efi Ford wiring lincoln idmsvcs tidbits imageservice harnes2002 lincoln ls need wiring diagram for heater. Full sequential COP and injection. Connect it to pin 24 on the Megasquirt main board, or the Tach pin on the relay board. 3) MS3 Cam Input (Dual VR v2. x card will need to be able to manage a 1992 f150 4wd 351w with MAP efi? also i see diyauto tune sells wires for the ms wiring harness that is 20 gauge. New MS3X wiring products available Post by Matt Cramer » Wed Oct 06, 2010 10:12 pm In addition to our new MS3X harness , we've used our new harness-building equipment to come up with three other MS3X related wiring items:Anyone onto the questions. -. 99. MS3X/V3. We are almost done pulling wires in the engine bay at this point. 57 mainboard with MS3X as shown above running firmware MS3 1. 8′ MegaSquirt Wiring Harness for MS3X. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. I'm looking for a wiring harness diagram / schematic for a 1987 911. I have a couple questions I have some resistors to be able to run TFI as well as the ms3x card so I can easily run my PWM IAC and my A/C. i will update this as frequent as i have questions which im sure will be alot due to this being my first car ill be wiring up myself. The R pin is the HEI module’s tach output. 0 mainboard. $114. Use this high quality MS3X wiring harness to take advantage of all the great features on the MS3X expansion board. MS3X/V3. I am able to read a signal on the wire to the harness. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. Hello,. 4? Well it's a test motor for learning megasquirt before the engine swap to a 1UZ. Megasquirt-3 with MS3X. On to all the injectors. Find DIYAutoTune MegaSquirt MS3X Wiring Harnesses and get Free Shipping on Orders Over $109 at Summit Racing! DIYAutoTune MegaSquirt MS3X wiring harnesses are 8 feet of TXL high-temp automotive grade wire. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. 1 ecu from bosch (Code 402) and have only been able to find wiring diagrams for the similar 3. 8′ MegaSquirt Wiring Harness for MS3X 5 out of 5 $ 114. 57, put main board JP1 in the 1-2 position and J1 in the 5-6 position. 00. MS3X setup and comm issues. 5 out of 5 $ 114. Injector wires are labeled, and are on the MS3x plug. I have a couple questions I have some resistors to be able to run TFI as well as the ms3x card so I can easily run my PWM IAC and my A/C. This confuses me. 0l Duratec) and built the whole vehicle wiring harness from scratch. MegaSquirt MS3X Wiring Bundle - Length = 23" ~23" of TXL High temp automotive grade wire. Connect it to pin 24 on the Megasquirt, or the Tach pin on the relay board. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. I feel that one of the common colour schemes should be used, e. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 5 out of 5 $ 114. 9K views 4 years ago. 1. 99. Sequential Fuel and spark plus a WHOLE LOT more! Professionally engineered and easy to install, fire up your L-series engine on day one! All wiring is composed of, self-extinguishing wrapped hi-temp TXL automotive grade wire with OEM connectors. The MS3X has a copy of this circuit that is used for cam or second trigger input. IAC and Ignition wire have been added for MS-I / MS-2 use or MS-3 Primary Harness Use 8′ of TXL High temp automotive grade wire. by 87ponygt » Wed Dec 30, 2015 3:22 pm. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . . Would 18 gauge be alright to run from the MS. Yeah, you need to test each coil in test mode to make sure they're even wired up correctly. I have a couple questions I have some resistors to be able to run TFI as well as the ms3x card so I can easily run my PWM IAC and my A/C. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here! Use with MS3X Expansion board or other sequential device Just. x card will need to be able to manage a 1992 f150 4wd 351w with MAP efi? also i see diyauto tune sells wires for the ms wiring harness that is 20 gauge. Add to cart8′ MegaSquirt Wiring Harness for MS3X. I think I read some where that its all 20 gauge wire. Add to cart. Boscobel, WI 53805. 1. 57 – The MegaSquirt 3 is a drop in daughter card that greatly expands the MegaSquirt’s functionality. -. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. Distributor Side: Harness Side: Purpose: Red: B/W: 12v+ White: G. 57 $ 659. 99 DIYAutoTune MegaSquirt MS3X Wiring Harnesses Wiring Harness, MegaSquirt MS3X , 8 ft. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. I'm currently working on the MS3 hardware manuals and as I've arrived at the table of wiring connections it has become obvious that the different existing manuals show different wire colours. Diyautotune harnesses. Traction Control. Starter is a new HiTorque unit. Look foir Pt. 1987 Supra Turbo - Megasquirt 3 w/MS3X & Holset 60/60 Turbo - Mega JOY! So, all coils share a common fused 12V, but each has a different ground connected to the MS3x box. Heavy duty metal DB37 hood for superior RFI/EMI shielding (no cheap plastic ‘metalized’ hoods. I have a couple questions I have some resistors to be able to run TFI as well as the ms3x card so I can easily run my PWM IAC and my A/C. This MS330-K kit includes everything you will need to build your MegaSquirt-3. MS3x Wiring Questions. 8′ MegaSquirt Wiring Harness for MS3X. The signal output is going to come in at 8-10 volts from the GM module, so I need to build that circuit with a zener diode to bring it into the 0-5 volt spec for JS4 or JS5. This model is equipped for basic, batch fire, but can be expanded to add sequential injection and 8 channel ignition control with an MS3X card (sold separately). Megasquirt-3 Setting Up manual PDF WWW. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . I am running fully sequential fuel and spark via MS3X. 500 Hwy 133. Color coded wiring with labeling printed on the wire every 6 inches — no paper tags here! Use with MS3X Expansion board or other sequential device. 57 is a little. ( 8 customer reviews) $ 1,749. 2. 57 w/MS3X with a 4 wire distributor? I have a 1987 Nissan 300zx and the dizzy is a 4 wire, power, ground, and 2 signal wire distributor. 57 in car for the first time and am running diagnostics. Had a question about the signal ground to MS3 (Pin B) - I assume since the coil switching is coming from the MS3X board it would be better to ground to this rather than the main board ? MS3Pro Ultimate Standalone Engine Management System w/ Harness. 99. View Profile View Forum Posts. Get the serial comms set up. Just like the MS3X harness, but with no DB37 connector. MegaSquirt MS3X Wiring Harness for full sequential fuel injection and ignition, as well as tons of other I/O (Dual Stage Nitrous, 2nd O2 Sensor, Boost/Launch Control, etc)MegaSquirt MS3X Wiring Harness – 8 feet. - Full custom harness builds - DIY wiring solutions - Circle track harnesses - Standalone installs. Would 18 gauge be alright to run from the MS. 57 with wiring harness for 00-04 3rz-fe turbo plug and play « on: Oct 26, 2016, 03:56:33 PM » I have for sale a Megasquirt Stand alone ECM MS3X v3. 5 out of 5 $ 114. Am I missing it or is there a color code key for the ms3x harness. I also have a Mustang 91 with T5 transmission and would like to use traction control feature. 4. Wire to pin 8 for 1G and 2G MS3X connector: pins 2, 3, 8, 12, 17 Wire with your grounds from the mainboard pin 4 Injector F output (cyl 6) Wire to pin 16 for 1G and 2GRe: MS3+MS3X and the EEC-IV adapter board Post by xrattiracer » Sun Mar 28, 2010 5:50 am what exactly would be the point of using a ms3x with the stock ford harness? you would have to add all sorts of extra wires for the extra functions anyway. 70 Subtotal without wideband . Color coded wiring. Showing: 4 results for Wiring Harness near Victoria, BC. 0 ECU, which is based on Megasquirt-3 technology and features an MS3 card and an MS3X expansion card on a through hole V3. overall cost is a big factor to me. 99. 57 specific External pull up: Wire a 1K resistor in between pins 24 and 26 in the main board wiring harness. MS3 Pro Plug and Play for 04-05 Mazda Miata Mazdaspeed Miata. Color coded wiring with labeling printed on the wire every 6 inches — no paper tags here! Use with MS3X Expansion. SAYS IF HALL SENSOR. 3) MS3 Cam Input (Dual VR v2. Each wire comes with stamped labels every 3" along the length of the wire for easy identification. However, a dmm reveals no shorts to ground in the crank sensor wiring and continuity between pins on the DB-37 and crank plug. Parts I'm using: Stock L28ET OneSix Dizzy LS2 CoilsHi All, I just recieved my MS3x and wiring harness yesterday, and have been looking for diagrams to use to wire it in to my car. 99 DB15 Pigtail Harness Add for $ 23. This is the latest top of the range MegaSquirt ECU – the MegaSquirt 3 (MS3)! This controller is jam-packed with features found on aftermarket engine controllers costing 10X as much, yet is easy to use and configure!. 5 PWM outputs. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here! All wiring is pre-crimped (NOT solder cupped!) to the DB37 Heavy d. 8′ of TXL High temp automotive grade wire. Run this resistor-on-a-wire from the 5 volt terminal in the proto area to the same input pin (SPR1 or PAD7) used in the previous step. 9 Magnum. Post by shiftin04 » Thu Jul 08, 2021 3:06 pm. 00 StimPower: JimStim power supply $83. Connect the 12 gauge red fan power wire to a spare terminal on the fuse. Color coded wiring with labeling printed on the wire every 6 inches — no paper tags here! All wiring is pre-crimped (NOT solder cupped!) to the DB37 Heavy duty metal DB37 hood for superior RFI/EMI shielding (no cheap plastic ‘metalized’One 12V, one ground, one crank sensor and one cam sensor. SAYS IF HALL SENSOR. Not including the connectors, the case itself is 1. Would 18 gauge be alright to run from the MS. Hey Everyone. MS3X wiring and settings. We’ve packaged a DB37 male solder cup connector and a metalized plastic backshell for your MS3X builds. SAYS IF HALL SENSOR. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . 9 Magnum. 3) MS3 Cam Input (Dual VR v2. 2. Manual and Guide Full List. Salvage all of the mounting grommets and the penetration grommet. x. 99. The explanation in the manual states that sometimes a coil is necessary. 4 Scope of advice with MS3X; 2: Megasquirt System Hardware. I have just recevied a MS3 card and in anticipation of obtaining a MS3x, after reviewing the latest MS3x wiring schematic, pin 2 is now shown. 2:. (no paper tags). 3: Wiring. 0 Reviews. 3. . 6 > 88 Carrera wiring queries. Note that the DIY Autotune wiring harness has a shielded wire – connect only the inner wire to this pin! Connect the E pin to MS3X pin 14 to send the timing signal to the HEI module. Any help would be appreciated. This product is manufactured in Gainesville, Georgia, USA. 5″ tall including the mating connectors. Full sequential COP and injection. DB37 Solder Cup Connector for MS3X $ 8. 00. Connect it to pin 24 on the Megasquirt, or the Tach pin on the relay board. MegaSquirt-I Relay Cable (if you’re using the relay board and cable, you don’t need the standard MSHarness12, see note in product description) 8′ MegaSquirt Wiring Harness for MS3X. To make sure you can't accidentally switch the upper and lower harnesses, the MS3X harness uses a male DB37 connector instead of a female one. 5 out of 5 $ 114. There is a recall on us crankps and they sell a wiring harness kit with it. . 1-8 Spark 1-8 Cam Nitrous 1 (Line Lock) Nitrous 2 (Trans Brake) Boost (Boost Solenoid) EXT_Map (LS9 Map Sensor). ( 1 question) 5 out of 5 based on 4 customer ratings. Wiring Fuel System Fuel System Menu; Fuel System ALL FUEL SYSTEM. Would 18 gauge be alright to run from the MS. SAYS IF HALL SENSOR. SE EFI Installation Manual. SAYS IF HALL SENSOR. 3) MS3 Cam Input (Dual VR v2. to the Megasquirt. 0 0 Hardware Guide General layout for 4-cyl coil-on-plug using LS coils. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. JamesMS3Pro Ultimate Configurable Inputs/ Outputs: 10 channel 4:1 or 8:2 programmable peak and hold injector outputs. 2014 BMW X1 35i MSport - single turbo N55 - stock! 2012 BMW X3 35i MSport - single turbo N55 - stock! (GONE)8′ MegaSquirt Wiring Harness (MS1/MS2/MS3 Ready) 5 out of 5 $ 99. The heart of the beast! A turbocharged 2JZ dancing to the tune of an MS3X ECU. 8′ MegaSquirt Wiring Harness for MS3X. MegaSquirt MS3X Wiring Harness – 8 feet 8′ of TXL High temp automotive grade wire. I was wondering if anyone has any information on how to wire a MSD 6AL ignition box to MS3 V3. 8′ MegaSquirt Wiring Harness for MS3X. Remove the entirety of the engine wiring harness. 1 ecu from bosch (Code 402) and have only been able to find wiring diagrams for the similar 3. Includes complete Universal 8′ Flying Lead Harness. Color coded wiring with labeling printed on the wire every 6 inches — no paper tags here! Use with MS3X Expansion board or other sequential device. MS3Pro Ultimate Standalone Engine Management System w/ Harness. 3) MS3 Cam Input (Dual VR v2. I have pictured what i think is the main starting circuit relays or the main relays off of the zxt. MS3X/V3. Dated: Hardware manual covering specific wiring and 3. 3) MS3 Cam Input (Dual VR v2. Use the MS3X pull up jumper for the. 5 PWM outputs. . Product Details. Megasquirt Ls Wiring Harness megasquirt wiring harness diagram,megasquirt 3 wiring diagram,megasquirt 2 wiring instructions,megasquirt 2 wiring diagram,maxxecu ls wiring harness,megasquirt ms3x wiring diagram,ls plug and play wiring harness,ls motor wiring harness, You can also use it to hold it on the barbs on. ‘Optional’ MegaSquirt Relay Board – Assembled Unit. 7 Tuning interface; 3: Wiring. To make sure you can’t accidentally switch the upper and lower harnesses, the MS3X harness uses a male DB37 connector instead of a female one. Spark output: Going high; Spark hardware in use: MS3X spark; Dwell type: Standard dwell; MS3Pro wiring and settings. This product is manufactured in Gainesville, Georgia, USA. 5bar map built into the MS unit. 5 Sensor. 5 out of 5 $ 114. Find DIYAutoTune MegaSquirt MS3X Wiring Harnesses and get Free Shipping on Orders Over $109 at Summit Racing! DIYAutoTune MegaSquirt MS3X. From the factory it had the sensor mounted to the timing cover.