Pins 6, 28, 34 and 55 on the harness side go straight to Earth ground. 8′ of TXL High temp automotive grade wire. I wrote the 3 wire mode so the 3-wire valve can be driven as the manufacturer intended. MS3 – Fully assembled and tested, ready to wire in and go! The MegaSquirt 3 (MS3) is ready to support a wide variety of engines out of the box, with the ability to control anything with one to eight cylinders with sequential fuel injection and sequential ‘coil on plug’ ignition, a V12 with semi-sequential fuel and wasted spark ignition, or a four rotor Wankel with separate. Also using a jimstim 2. Colors shown are for factory wiring harnesses. Terminal Type: Pin. 1. So the wire diagram shows the crank sensor the ground going to pin 1 on the MS3 main connector. I need some advice from the group. 6 flywheel (60-2 teeth). 3) MS3 Cam Input (Dual VR v2. We’ve got your MS3Pro ECU with drop-on/PNP LS Wiring Harness, ready to make the job EASY! News & Updates Read More. Ms3x Wiring Png. This version of the documentation applies to: •. ;)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: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. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. 4g63 with weird spark output. Harness Length and get Free Shipping on Orders Over $109 at Summit Racing! Shop the Labor Day Deals and Save Now! Vehicle/Engine Search Vehicle/Engine Search Make/Model SearchSimply choose your injector style from the drop down menu! This package includes an MS3Pro 1st Gen ECU. VVTuner 18″ Pigtail Wiring Harness $ 34. 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’ hoods used on our harnesses) Use with MS3X Expansion board; This is the harness for the MS3X Expansion. 5 out of 5 $ 114. Would 18 gauge be alright to run from the MS. . It's very detailed. . Add to cart. COPs are from Toyota Highlander with 350 ohm input resistance. 57 case, making it significantly taller than the DIYPNP case. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. Be sure to follow the guidance here to avoid common mistakes that will often lead to problems. 8′ MegaSquirt Wiring Harness for MS3X. MegaSquirt Relay Cable. 0 mainboard. x See the Setting Up manual for more detail on version numbers. MS3X/V3. SKU: MS3X-Hrn Categories: MegaSquirt 3, MegaSquirt 3, Wiring Harnesses & Wire Bundles Tags: 3, 357, harness, iii, mega, megasquirt, megasquirt3, ms3, ms3x, squirt, wire, wiring Brand. by 87ponygt » Wed Dec 30, 2015 3:22 pm. 5. MegaSquirt 3. The R pin is the HEI module’s tach output. 1 Cowl Wiring Harness CM-14A006-A5LB This harness is labeled and includes all connections required to power up and run your engine equipped with a 2011 or newer. Because of this, we need to replace the unshielded wire with two conductor shielded. For those wanting a complete, ready-to-go setup with harness, calibrations, etc then look at the. I have a m50 NON-Vanos motor with a Motronic 3. Beach, VA MS3x Wiring Questions by Dennis930 » Fri Jul 30, 2010 1:56 am I installed a MS3 cable harness when I installed MSII last year. Customer leaves one star review because he expected the wire bundle to be 30" long. MS3x Wiring Questions. You don't need that ignition module, you ve COP on your car and you need to find a way to ignite your coils with MS3X spark outputs. I like using the relay boards because they simplify the wiring process and they make it a lot easier to have a clean install. MegaSquirt MS3X Wiring Bundle – Length = 8′. Use the MS3X pull up jumper for the. 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. 8′ of TXL High temp automotive grade wire. MegaSquirt MS3X Wiring Bundle – Length = 8′. 57 specific External pull up: Wire a 1K resistor in between pins 24 and 26 in the main board wiring harness. MegaSquirt MS3X Wiring Pigtail – Length = 24″. 1 PWM IAC output – can be repurposed as. MS3X N/A Overdrive solenoid valve Unit A - cyl 1,2; Unit B - cyl 3,4; Unit C - cyl 5,6 Mitsubishi specific notes apply to 1997 5-speed ECM and wiring harness' Fuel Injection, ignition (Eng GND) 130 129 N/A N/A Fluid temperature sensor Low-reverse solenoid valve 124 confirm in manualMegasquirt ms3x wiring diagram. VISIT US. I am using a preassembled ms3x system with a 3. Free Shipping - DIYAutoTune MS3X-Hrn with qualifying orders of $109. it's POSSIBLE the PO set it up in wasted spark (basically 1 wire will trigger cyl 1 and 4, the other 3 and 2) but that isn't likely if he's bought the harness from DIYPNP and I believe it has provisions for full sequential spark. Customer reviews. That DB37 pin 7 is an old diagram I mentioned earlier. 1 Overview; 2. 3 Wiring Harness; 2. Posts: 70. My original thought was that the only thing that could have change could have been wiring from jostling the harnesses around. 57 in car for the first time and am running diagnostics. I was wondering if anyone has any information on how to wire a MSD 6AL ignition box to MS3 V3. Build the ECU up to trigger for inverted VR output. 99. 57 in car for the first time and am running diagnostics. ( 14 questions) 5 out of 5 based on 8 customer ratings. The versatile MicroSquirt with 30″ Harness: Standalone Engine Management System, Transmission Controller or CAN I/O Expansion Module- Version 3. for example 35x on second column means 35 pin on ms3x wiring diagram. If that's the case how can I change the inputs; From what I understood I would just unhook the 2 ignition wires from the db37 harness and run it into my ms3x expansion harness under SPARK A and SPARK B. But my big brain figured to follow MS3x directions and redo the wiring harness. Shop for the best Fuel Rail Pressure Sensor Connector for your vehicle, and you can place your. consider it time to get rid of that ratty old stock harness and do up a new one. Long TXL High-temp Wire, Heavy-duty DB37 Metal Hood, RFI/EMI Shielding, for use with MS3X Expansion Board, Each Location: Sandefjord, Norway. I've tried each wire from the sensor. Connect it to pin 24 on the Megasquirt main board, 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. More expensive standalone systems also. I installed a MS3 cable harness when I installed MSII last year. 24″ of TXL High temp automotive grade wire. 3. 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. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. This manual covers MS3X/V3. 9K views 4 years ago. Help with traction control wiring and needs. ,230/232 @. This version of the documentation applies to: • MS2 on a V3. 5″ high. Salvage all of the mounting grommets and the penetration grommet. I have an m52 b28 in my car, running the obd2 harness spliced to my MS3x harnesses. 0 PCB, everything in the standard Bill Of Materials, the MS3 daughter board kit, the case, pre-machined endplates and heatsink bar. 00 MSHarness: 10' main board wiring harness $79. Add. 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)We carry 8′ wiring harnesses for $83 that are designed to be adapted to any engine. 5bar map built into the MS unit. MS3X adds a lot of complexity to the MS experience. 99. 99 Add to cart MegaSquirt 3 EMS System V3. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. To access the remaining two connectors on the wiring harness you need to move over to the driver side and discconect them. 0, wire TachSelect to VRIN and TSEL to VROUTINV. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . With the jimstim hooked up it still says "not rpm synced". 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. The heart of the beast! A turbocharged 2JZ dancing to the tune of an MS3X ECU. MegaSquirt MS3X Wiring Bundle – Length = 23″ ~23″ of TXL High temp automotive grade wire. Description. Wire the distributor’s VR sensor to the HEI module VR inputs. 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. IMO it's strange why the stock MS3X wiring from DIY Autotune does NOT have shielded CAM-wiring as standard. B1 (Relay Ground for Fan) 12v Switch 5vRef Grounds Dedicated Ground MS3X Board: Inj. ( 4 customer reviews) $ 114. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here!. The wire colours are not chosen at random, but rather have logic to them. We’ve packaged a DB37 male solder cup connector and a metalized plastic backshell for your MS3X builds. Joachim. 0 is an ECU based on Megasquirt-3 technology, consisting internally of an MS3 card and an MS3X expansion card installed on a through-hole DIY V3. Serving my area. 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. the US Shift Pick-4 trans contoller is kinda expensive at $750 for harness and controller. Internal pull up on a V3. Am I missing it or is there a color code key for the ms3x harness. SAYS IF HALL SENSOR. 57 with MS3X, use the Spark A output on the MS3X board (pin 14). . SAYS IF HALL SENSOR. The MS3X has a copy of this circuit that is used for cam or second trigger input. Click here to download the standard MS3Pro documentation. . MS3Pro EVO Standalone Engine Management System w/ Harness. MS3X/V3. 3. This 8′ wire with pre-crimped terminal can be poked into our MegaSquirt DB37 harness if an extra wire is needed for additional I/O (MSHarness12, available separately). All I have are the ignition coils from the original bike. I think I read some where that its all 20 gauge wire. If someone with more experience could look over my setup I'd be ecstatic I know there is a wiring problem somewhere and expected so because I'm splicing into the factory harness I have 3 out of 8 injectors firing <-FIXED and no spark when running test. 2a. 2003 Mustang 2V stock harness splice, MS3X v3. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . 82 - 83 280zx Turbo distributor wiring plug. SAYS IF HALL SENSOR. 3 Re-pinning the DB37; 3. . Found it relatively cheaply at 4K. I think I already know the answer to my question, but I want to ask first before I re-do my wiring. I also have a Mustang 91 with T5 transmission and would like to use traction control feature. 5 out of 5 $ 114. $99. Some MS3X harnesses don't include shielded wire on their trigger input. 0 Hardware Guide 1:Introduction The MS3X/V3. I'm looking for a wiring harness diagram / schematic for a 1987 911. I am getting ready to purchase a MS3X Kit, I just wanted to get anyone's ideas of anything I have missed. Re: Megasquirt ON BMW m52 Engine. 0 too, but the point gurov makes is fair - using identical drivers for both sides is good practice. 0 Hardware Manual - Megasquirt UK Official SiteThis manual provides detailed instructions and diagrams for installing and configuring the MS3X/V3. SAYS IF HALL SENSOR. 1988 Carrera - 3. Today's Posts; Member List; Calendar; Forum; Saturn Related Forums; Saturn Performance; Tuning / Fuel Management; If this is your first visit, be sure to check out the FAQ by clicking the link above. 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. The engine, in particular, boasts a 10:1 compression ratio. 2 digital outputs. 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. now can i use the spare 4 fuel or. Regular price $109. For example, the MS3X "boost" output equivalent on the MS3-Pro is "high current out 3". 0: Solder a 1K resistor to a length of wire and connect it from TachSelect to S5. MS3Pro ULTIMATE Pinout Glossy Card. 3) MS3 Cam Input (Dual VR v2. . Hardware. Setup your vehicle wiring harness ensuring it is fused. 99. Joined: Mon Sep 19, 2011 6:10 pm. 1. This MS330-K kit includes everything you will need to build your MegaSquirt-3. 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. Ms3x forums Megasquirt wire executing experiment mega ii plan part Ms3 and ms3x wiring questions Megasquirt ms3x wiring diagram. 5 out of 5 $ 114. MegaSquirt MS3X Wiring Harness – 8 feet 8′ of TXL High temp automotive grade wire. Diyautotune harnesses. 3) MS3 Cam Input (Dual VR v2. SAYS IF HALL SENSOR. 1. jsimmons Experienced MS/Extra'er Posts: 207 Joined: Thu Jun 11, 2015 6:12 am. Add to cart. 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)This is the harness build guide for the Megasquirt MS3X. 99. 99. ) 5. We've got a pre-assembled MS3 with the MS3X extra board, and I believe it is a V3. the story so farMs3x miata megasquirt Ms3x sync loss problemsWiring megasquirt ms3x harness wire labels diyautotune bundle diagram automotive close. Buy their pre assembled wiring harness to make it crazy simple. It's a bitch reading the spark wires. and so on. . 8′ MegaSquirt Wiring Harness for MS3X. It's very detailed. 1. SymTech Labs makes this harness using only the highest quality TXL grade, 20 gauge wire. 70 Subtotal without wideband . 8′ of TXL High temp automotive grade wire. I have some questions as I am hooking up the wiring. Would 18 gauge be alright to run from the MS. The aim is to be most helpful to the customer with least confusion. 8′ of TXL High temp automotive grade wire. . 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. Would 18 gauge be alright to run from the MS. 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 like a short run of the MS3X harness, but with no DB37 connector. Filter (0 active) Filter by. Add to cart. Just swap wire from fidle to inj1 or 2, install jp7 jumper and put 1k. 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 mainboard as shown above running firmware MS2/Extra 3. The MSD box says to wire the Violet(+) and Green(-) to the power and ground on the distributor. Learn how to set up and tune your MS3X/V3. Full sequential COP and injection. billr wrote: If it will fire while cranking, then die as soon as the key is released back to the "run" position, it seems like your primary problem is how the ignition switch is wired to provide power; probably has nothing to do with the tune. 0 Hardware Guide. This manual covers MS3X/V3. I have a MS3 with expansion board MS3X. Everything on the jimstim works too except the rpm signal. Connect the 12 gauge red fan power wire to a spare terminal on the fuse. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. comNeotech mega accordion harness Harness mega wiring ram 2006 cab dodge rear door mopar 2500 oem 2009Harness megasquirt 12ft. 5 mm barrel connector used with the Innovate LC-1 and VVTuner. 99. Obd1 and OBD2 cam sensors are 3 wire but the plugs are inverted male and female from obd1 to obd2. 2:. 9 Magnum. A main step in your MS3 Gold Box installation is connecting up the wiring. Matt Cramer -1966 Dodge Dart slant six running on MS3X. Overview. Setting Up. 00 MSHarness: 8' main board wiring harness $86. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 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. 12 channels sequential fuel (hi-z injectors or low-z with. . 2 digital outputs. . 3. To start viewing messages, select the forum that you want. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . I connected the "signal" grounds to the terminal where I ground all of the megasquirt grounds. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . 00. I am now running wasted spark ignition on 6 cylinder BMW M30 engine. MegaSquirt Wiring Harness - 24 inches long Completely redesigned version adds more features to help make your installation as easy and reliable as possible. 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 MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. This MS3x Plug and Play setup offers much more than your standard EFI control. 2. 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. 99. At that. Just to note, the motor will be turbo-charged, and I will use my MS3x to control box spark and fuel. 4. On to all the injectors. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. You will also notice that the "sensor ground" wire on the DIYautotune harnesses grounds to the same point as the other grounds for MS3. My questions: 1. If someone with more experience could look over my setup I'd be ecstatic. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . 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. 8′ MegaSquirt Wiring Harness for MS3X. External Ignition Wiring. Connect it to pin 24 on the Megasquirt main board, or the Tach pin on the relay board. 00. It looks like both sensors use the same ground connection. 2: use the 2. These manuals contain wiring, fuel and ignition setup and board assembly details that are specific to your exact ECU version. recently I purchased new MS & MS3X wire harnesses from DIYAUTOTUNE. Color coded wiring with labeling printed on the wire every 6 inches. Boscobel, WI 53805. by Dennis930 » Fri Jul 30, 2010 1:56 am. $99. MegaSquirt MS3X Wiring Bundle – 23″ 5 out of 5 $ 29. I'm tapping into the connector in the tunnel. Probing the sensor on a V3. 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:Ms3x sync loss problemsWiring diagram megasquirt sensor ms2 ms3 crank position harness diyautotune fc db37 ms1 switch work signal rpm problem thumbnail fuel Pro ms3 wiring diagram ultimate ms3pro megasquirt enclosure resistant developed provide gen 1st cart details addMegasquirt wiring 2gn ms3 ms3x. 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. From that same relay area, run a 12 gauge red wire all the way back to the ECU. From the factory it had the sensor mounted to the timing cover. Megasquirt-3 Setting Up manual PDF WWW. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. 1 Overview; 2. The MS3Pro measures approximately 8. MS3 Pro Plug and Play for 04-05 Mazda Miata Mazdaspeed Miata. You will also need to connect 330 ohm, 1/4 watt resistors from TPS VREF (pin 26) to both the low resolution signal and the high resolution signal to provide a pull-up in the wiring harness. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. 1L Hemi along with the engine wiring harness off of Craigslist. We’ve packaged a DB37 male solder cup connector and a metalized plastic backshell for your MS3X builds. MS3Pro Ultimate Configurable Inputs/ Outputs: 10 channel 4:1 or 8:2 programmable peak and hold injector outputs. 99. 4 Crank / Cam Inputs The Crank and Cam sensors provide the. 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. I have some questions as I am hooking up the wiring. I've read the MS3 manual wrt grounding and understand importance of running grounds back to MS. 8′ MegaSquirt Wiring Harness for MS3X. I currently have the recommended tach driver mods installed per MS2/Extra ignition description (which work). MS3/x ground wiring. 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. You will be using the MS3X Ignition Drivers NOT the Mainboard drivers. I made sure that I didn't bundle MS wiring with the X wiring. MS3x Wiring Questions. 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. All wires are color coded and printed with their functions. I have wired in pull up resistors in the wiring for both so the MS3 gets a voltage it can process. It will start with it un plugged and even cut the MS3x wire going into the harness for cam in and it still shows a tooth logger pattern when it starts up. 3) MS3 Cam Input (Dual VR v2. Includes complete Universal 8′ Flying Lead Harness. Everything checks good in the engine harness. MegaSquirt MS3X Wiring Bundle - Length = 8' 8' of TXL High temp automotive grade wire. All wiring is pre. MS3X setup and comm issues. 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. 1998-2002 GM LS1 / LS6 Drive by Cable EFI Wiring Harness HAR-1012 LS1 Harness Instructions. Standalone engine management system based on Megasquirt MS3x Processor and firmware with enhanced inputs and output ports in sealed enclosure and sealed automotive connector. 6 Outputs; 2. 8′ MegaSquirt Wiring Harness for MS3X. 5 out of 5 $ 114. Would 18 gauge be alright to run from the MS. This product is manufactured in Gainesville, Georgia, USA. With initial cranking, the LEDs flash in the correct firing order sequence, then they just seem to lose the plot and go random when sync loss kicks in. Top. But what if you’d like to see the inputs and outputs on the MS3X expansion card in action, too? Now it’s easy – just add a JimStimX! Use the three pull-off jumpers on the JimStim to connect the 5 volt power, ground, and cam signal to the JimStimX, and you can test the outputs with the. the universal Terminator X 550-937 kit is like $1070. 4 Scope of advice with MS3X; 2: Megasquirt System Hardware. . During installation I added the wire from S12 to C end of D1 on the MS3X card per page 231/2. Using FIDLE and Idle will certainly be ok with the V3. Subscribe. Get the serial comms set up. The recall puts it towards the bell housing. Traction Control. Last edited by maxott1; 12-30-2011 at 04:40 PM. The heart of the beast! A turbocharged 2JZ dancing to the tune of an MS3X ECU. my components are a turbo ABA vw using factory crank trigger and a single. And when grounding them to the Megasquirt when. 12 analog inputs plus built-in MAP, Baro, and internal ECU temp sensor. MS3Pro EVO Standalone Engine Management System w/ Harness. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . - MS3 V3. 57 is an ECU based on Megasquirt-3 technology, consisting internally of an MS3 card and an MS3X expansion card installed on a surface mount V3. Fastest MS powered vehicle on the planet ! 6. That is the one part of the harness I did cut, and rewired the IAT wire to the GM sensor I installed in the y-pipe. Wire wiring ms3x g2 sensor forums porsche deleted ground engine should redMegasquirt ms3x wiring harness install pt. Sounds as if that may have been an issue with a preproduction harness - the earlier ones used MS3 wiring as we didn't have the pre-printed wiring specific to the MS3-Pro yet. All that looks good, so I’m going to get a new sensor tomorrow. For bench test purposes I have set the PWM idle duty table to 50% at the current temp. 500 Hwy 133. . Add to wishlist.