ms3x wiring harness. I have a m50 NON-Vanos motor with a Motronic 3. ms3x wiring harness

 
 I have a m50 NON-Vanos motor with a Motronic 3ms3x wiring harness  2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected

I will be using pin#32 on the MS3x harness for the Cam signal input, do I need to add the resistor and switch the jumpers of these on the MS3 board, or is that all taken care of on the MS3x board because I have and will be using that?. MegaSquirt Relay Cable. View Profile View Forum Posts. 49 IATwPiggy: Intake Air Temperature Sensor $9. I've had a build thread for the car going for quite sometime now which can be found here: Basically, at this point I've begun to build the wiring harness and wanted to not only ask a couple of questions, but confirm a few things I believe to be correct. I'm running shielded CAM sensor wiring though. Pins 6, 28, 34 and 55 on the harness side go straight to Earth ground. consider it time to get rid of that ratty old stock harness and do up a new one. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . Just like the MS3X harness, but with no DB37 connector. 3. 57 mainboard. MS3/x ground wiring. PWM IAC Wiring: To wire this up without the relay board (directly to the ECU), wire up the hot wire from the idle valve to switched 12v+ (hot in RUN), and wire the negative wire from the idle valve (stock EEC pin 21) directly to pin 9 on the MS3X DB37. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. Setup your vehicle wiring harness ensuring it is fused. SAYS IF HALL SENSOR. Would 18 gauge be alright to run from the MS. . 3. ;)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. 3) MS3 Cam Input (Dual VR v2. 00. All wires are color coded and printed with their functions. $114. I probed the wiring harness and had continuity between pin 2 and the corresponding pin on the VR connector, so the screen appears to be connected. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . 4 Crank / Cam Inputs The Crank and Cam sensors provide the. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. That will be plenty for a stock boosted engine. C1, and B1 body harness connectors to get power and the auxiliaries working. 6 conversion. In the end, the largest wires I used for the ECM side of things was 18awg for the injectors and coils, and that was. ‘Optional’ MegaSquirt Relay Board – Assembled Unit. MegaSquirt MS3X Wiring Bundle - Length = 23" ~23" of TXL High temp automotive grade wire. The R pin is the HEI module’s tach output. . This Excel file details the required connections for Megasquirt 3 (MS3) and the Megasquirt 3 Extender (MS3x), using an 88 pin connector and wiring harness from either the 1992 325i (E36, Motronic 3. by JoeC » Sat Apr 13, 2019 5:57 pm. It looks like both sensors use the same ground connection. Megasquirt will support 2 separate injector channels, meaning I need to It seems like you could more accurately emulate. 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. It is capable of controlling sequential injection on engines up to 8 cylinders, or semi-sequential up to 16 cylinders, combined with direct fire ignition for. . ) Does not apply to other Megasquirt products or other firmware versions. I am also using the MS3X to drive my injectors and pin 36 on my mainboard harness only switches my CDI on and off for ignition so my mainboard harness doesn't really need to. Would 18 gauge be alright to run from the MS. 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. The spark wires might be custom or stock. Color coded wiring with labeling printed on the wire every. $79. That’s it! Using the. -. Add to cart. And the newest version of tuner studio. There is a recall on us crankps and they sell a wiring harness kit with it. 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. SE EFI. Wiring Harness Adapter Guide For E30 M60 And Obd 1 M62 Swap Pinout A Cheap Way Of Getting X20 C101 Connectors Rts Your Total Bmw Enthusiast. 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′ MegaSquirt Wiring Harness for MS3X. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . 24″ of TXL High temp automotive grade wire. I am hoping to test fire my car this week. MS3base/V3. but also more difficult because there are way more wires and sensors in the engine wiring harness to connect to, especially the US. To pin 30, connect the 12 gauge red wire you ran all the way to the fuel pump. 2 digital outputs. Setting Up. 4 Crank / Cam Inputs; 2. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 8′ MegaSquirt Wiring Harness for MS3X. Add to cart. That’s it! Using the MS-I PCBv3 or V3. On to all the injectors. 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. x See the Setting Up manual for more detail on version numbers. x Does not apply to other Megasquirt products. Boscobel, WI 53805. with 2 1990 ignitors feeding MSD blaster ss coils. it is already tuned for boost and you can literally just plug in the harness, fire it up. 5 out of 5 $ 114. At least that's what the wiring diagram that came with it says. 8 logic level ignition outputs. With the jimstim hooked up it still says "not rpm synced". Top. Description. Wiring Harness, MegaSquirt, 8 ft. I have the MS3X harness wired up to the Quadspark but can't find any info on how to wire the Quadspark to the Ford factory coils. Connect MAP hose to full vacuum source. I'm tapping into the connector in the tunnel. External pull up: Connect a 1K resistor between the wire on pins 24 and 26 on the main board harness. 00 MS3X-Hrn: 8' MS3X wiring harness $22. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. MS3X/V3. 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. My questions: 1. Yeah, you need to test each coil in test mode to make sure they're even wired up correctly. megasquirt ms3x v3. 70 Subtotal without wideband . Would 18 gauge be alright to run from the MS. 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. 02 with MS3x board on a v3. So i could start to set the Tooth #1 Offset while cranking without sparks and a throttle body. This terminal is also grounded to the engine block. I think I already know the answer to my question, but I want to ask first before I re-do my wiring. 1 Best Practices. Both composite and tooth loggers completely lack input from the crank sensor. 0 mainboard. 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 ?. 0 – Unassembled Kit Part # MS330-K. 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. Bosch, Lucas or whatever they chose stateside. now can i use the spare 4 fuel or. Mega 5 point harness installHarness megasquirt wiring ms1 ms2 ms3 ready miata reply Custom wiring harness – customcableEverything you need. Traction Control. Obd1 and OBD2 cam sensors are 3 wire but the plugs are inverted male and female from obd1 to obd2. Connect your Megasquirt to a 12V fused supply either in the vehicle or on the bench. MegaSquirt MS3X Wiring Pigtail - Length = 24" 24" of TXL High temp automotive grade wire. The R pin is the HEI module’s tach output. Anyone onto the questions. The versatile MicroSquirt with 30″ Harness: Standalone Engine Management System, Transmission Controller or CAN I/O Expansion Module- Version 3. The setup is a LQ9 408 so i have the harness occupied as follows so far: Main Board: IAT CLT TPS Crank EGO1 (Innovate Bank 1) INJ. 5 out of 5 $ 114. 57 Hardware Guide 1: Introduction The MS3X/V3. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . James1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. MS3X/V3. SAYS IF HALL SENSOR. ( 6 customer reviews) $ 1,599. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . They all go to the ground pins on the DB37 which all connect to the ground plane of the PCB. 5 Sensor Inputs; 2. Is it using it's own pattern if the cam signal is not presant. I have recently purchased the ms3x 3. At that. -. Megasquirt MS3X > 3. Number Of Wires: 3. Includes complete Universal 8′ Flying Lead Harness. 1 ecu that is the vanos motor. 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). Re: car wont start with new ms3x. Uploaded by Ojeda Orlando. The goal is to get the VE table to generate and AFR out the exhaust as close to the target AFR as possible. I connected the "signal" grounds to the terminal where I ground all of the megasquirt grounds. This confuses me. Help with traction control wiring and needs. This product is manufactured in Gainesville, Georgia, USA. 9 Magnum. 8′ of TXL High temp automotive grade wire. 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. 99. Megasquirt 3 with 3X Expander and V3 CPU. by subwoofer » Thu Aug 14, 2014 5:36 pm. 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. On the diagram, it shows only one wire coming for the harness, I assume the other wire will be the keyed positive. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. You may have to register before you can post: click the register link above to proceed. MS3Pro ULTIMATE Pinout Glossy Card. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 6 digital inputs. Hardware manual covering specific wiring and configuration of your Megaquirt MS3X/V30 ECU. They are very nice and fully labeled (printed labeling on the wires) with split loom covering. The are essentually the Fuel VE table and the results as measured by the wideband sensor. - Full custom harness builds - DIY wiring solutions - Circle track harnesses - Standalone installs. Overview. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 8′ of TXL High temp automotive grade wire. Distributor Side: Harness Side: Purpose: Red: B/W: 12v+ White: G. This article does not apply to LM1815 circuits, such as the Zeal daughter board. 0 Reviews. GM uses a 20aw so I would think that would be. I have the m50 cam position sensor installed as form my understanding this is the one megasquirt can read, and I have an m44 crank sensor installed. Where is this harness made? We assemble this harness in Gainesville, Georgia, USA. 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. 99. Am I missing it or is there a color code key for the ms3x harness. Look up crankposition sensor recall m52. . 57 with MS3X add on. NB2 cars have the most straight forward installation. by jsmcortina » Thu Aug 14, 2014 5:02 pm. Well, apparently I’m not too brave lol. 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 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. Pin 9 - Green / White. 2. 57 $ 659. Grounds need some Clarification. Internal pull up: For a V3. Would 18 gauge be alright to run from the MS. Length Harnesses, Kit See. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. 57, put main board JP1 in the 1-2 position and J1 in the 5-6 position. It sounds like your saying I cant do that but just move the GREEN and RED wiring from my LED's to the ms3x expansion board itself. 57 board with MS3X board. $99. 5 out of 5 $ 114. 0 mainboard with MS3X as shown above running firmware MS3 1. From the factory it had the sensor mounted to the timing cover. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. The BMW E36 is a masterpiece of attention to detail. We've got a pre-assembled MS3 with the MS3X extra board, and I believe it is a V3. 3 Wiring Harness; 2. MegaSquirt MS3X Wiring Pigtail – Length = 24″. This MS3x Plug and Play setup offers much more than your standard EFI control. 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. Hardware manual covering specific wiring and configuration of your Megaquirt MS3X/V30 ECU. 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’I've personally found PWM valves a little easier to configure - you just need to set the frequency (Ford runs theirs at 300 Hz) and adjust the duty cycle until you hit your desired RPM. Beyond the Ordinary: BMW Style with a 2J Twist November 14, 2023 Read More . On to all the injectors. Just like the MS3X harness, but with no DB37 connector. Add to cart. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . This terminal is also grounded to the engine block. We offer most of our MegaSquirt systems as kits or assembled units to give you plenty of tuning options for your budget and needs. 4 tacoma 2rz-fe 2wd with manual using stock harness with a MS3X. I've tried each wire from the sensor. We've packaged a DB37 male solder cup connector and a metalized plastic backshell for your MS3X builds. 50. 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. jsmcortina Site Admin Posts: 39392 Joined: Mon May 03, 2004 9:34 am Location: Birmingham, UK. the MS3X plug for sequential fuel and injection requires its own harness. 0 Hardware Manual - Megasquirt UK Official SiteThis manual provides detailed instructions and diagrams for installing and configuring the MS3X/V3. 0! Perfect for your motorcyle, snowmobile, or personal watercraft! Or control your auto trans. 3 Re-pinning the DB37; 3. 5″ long (including the mounting ears), 4-5/8″ wide, and 2. Filter (0 active) Filter by. Also i a using the newest firmware on the ms3x, I believe it is 1. 5 out of 5 $ 114. 99 DIYAutoTune MegaSquirt MS3X Wiring Harnesses Wiring Harness, MegaSquirt MS3X , 8 ft. 49 38NPT-Bung_A: Aluminum bung for. 6 wires off main harness terminate on engine sensors and switches. Add Shielded Cable To MS3X Harness. 8′ of TXL High temp automotive grade wire. Everything on the jimstim works too except the rpm signal. 99. The wiring harness connector is sold separately as we give you a choice of a ready-to-crimp connector, or a pre-crimped pigtail. Megasquirt 3 Wiring Help LM7 / LS1 / LS to a MS3 with MS3X (Megasquirt 3 with Expansion for sequential fuel injection). 0 Hardware Guide. Last edited by jeffmarsh750 on Mon Jun 02, 2014 5:46 am, edited 1 time in total. The MS3X has a copy of this circuit that is used for cam or second trigger input. 1. the Foxbody 550-937F kit is $1230 and i think the difference is connectors, but my connectors are not all the same anyway. 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. 1. Memories: '68 912, '72 911T, '80 911SC, '84 911,. I bought a de-pin tool so I can repin my DIY harness and have done it exactly as shown in the first diagram (ms3x) - with each sensor getting a ground wire. Use with MS3X Expansion board or other sequential device Just like a short run of the MS3X harness, but with no DB37 connector. This harness connects to the lower (main board) connector, while the upper (MS3X) connector uses the MS3X harness. 6 Bench Test Wiring: MS3X/V3. 3: Wiring. Ground – run the ground wire from the box to the corresponding injector. This only applies to the MS3X outputs (or on an MS3-Pro); the LED spark outputs use the same pattern as MS2/Extra so as to make it easier when upgrading from MS2 to MS3. 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. 1 ecu from bosch (Code 402) and have only been able to find wiring diagrams for the similar 3. Would 18 gauge be alright to run from the MS. Over Boost Switch - Left of center on front of IC – (930-606-101-00-M100) Pin 4 – Green / Red. 50. 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. ( 4 customer reviews) $ 114. For a V3. Probing the sensor on a V3. 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. MS3&MS3X v. 1-8 Spark 1-8 Cam Nitrous 1 (Line Lock) Nitrous 2 (Trans Brake) Boost (Boost Solenoid) EXT_Map (LS9 Map Sensor). There are no reviews yet. 24″ of TXL High temp automotive grade wire. Will either of these things cause issues. MS3X/V3. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. 2 Megasquirt Installation; 2. All I have are the ignition coils from the original bike. Notably, the car features a BMW E46 M3 6-speed transmission, a Thayer Motorsport upgraded Limited Slip differential, and a meticulously assembled engine. 3) MS3 Cam Input (Dual VR v2. 0 and higher code; some earlier codes used different wiring. 2: use the 2. 95 MS3TuneCable: USB communications cable for MS3 $952. MS3 3. MS3Pro Ultimate Configurable Inputs/ Outputs: 10 channel 4:1 or 8:2 programmable peak and hold injector outputs. 05-19-2017, 03:45 PM. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. yes i was aware of the pin number being incorrect when i was installing the harness. 0 too, but the point gurov makes is fair - using identical drivers for both sides is good practice. On a V3. 2003 Mustang 2V stock harness splice, MS3X v3. 3 Wiring Harness The Megasquirt can be supplied with a "pigtail" wiring harness to form the basis of your own wiring. 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. 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. 3. MS3 wiring harness colours - standardisation. MegaSquirt MS3X Wiring Bundle – Length = 23″ ~23″ of TXL High temp automotive grade wire. 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. I have a m50 NON-Vanos motor with a Motronic 3. 0 Hardware Guide 2. 00. Dated: Hardware manual covering specific wiring and 3. 3) MS3 Cam Input (Dual VR v2. 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. You may have to register before you can post: click the register link above to proceed. Top. 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. Get the serial comms set up. B1 (Relay Ground for Fan) 12v Switch 5vRef Grounds Dedicated Ground MS3X Board: Inj. Ok. MS3X on 2010 Camaro LS3 + Whipple @ 10psi + HPT + AEM 30-0333/0334 WB. 4. 57 – The MegaSquirt 3 is a drop in daughter card that greatly expands the MegaSquirt’s functionality. I have a m50 NON-Vanos motor with a Motronic 3. It's very detailed. For bench test purposes I have set the PWM idle duty table to 50% at the current temp. 0 specific1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. Joined: Mon Sep 19, 2011 6:10 pm. 3) MS3 Cam Input (Dual VR v2. Anyone onto the questions. Notably, the car features a BMW E46 M3 6-speed transmission, a Thayer Motorsport upgraded Limited Slip differential, and a meticulously assembled engine. I have a m50 NON-Vanos motor with a Motronic 3. Color coded wiring with labeling printed on the wire every 6 inches — no paper tags. 8 logic level ignition outputs. One thing, you have 3 wire coils shown which are usually "dumb" coils and will need some sort of ignitor wired between them and the MS3X. . Find Parts and Accessories ms3x KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! Get Off-Road With Savings on Select Jeep® Products! Vehicle/Engine Search Vehicle/Engine Search Make/Model SearchI've personally found PWM valves a little easier to configure - you just need to set the frequency (Ford runs theirs at 300 Hz) and adjust the duty cycle until you hit your desired RPM. I know there is a wiring problem somewhere and expected so because I'm splicing into the factory harness. For example, the MS3X "boost" output equivalent on the MS3-Pro is "high current out 3". Description. Learn how to set up and tune your MS3X/V3. MegaSquirt MS3X Wiring Harness – 8 feet. 57 Hardware Manual Megasquirt-3 Product Range MS3 1. I've also tried the nitrous in. C101 to X20 adapter is assuming you're removing the X20 from the E36 engine harness, and. 0l Duratec) and built the whole vehicle wiring harness from scratch. The MS3Pro measures approximately 8. On to all the injectors. 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. 2 Megasquirt Installation; 2. I've already searched the archives and was unable to located anything beyond 1982. 20 pages. MS3X adds a lot of complexity to the MS experience. A main step in your MS3 Gold Box installation is connecting up the wiring. 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. 2 high impedance injector outputs – max peak current increased to 19 amps. 8′ of TXL High temp automotive grade wire. Bring the e-fan wire (IAC1A) out to the front of the car around the driver side front relays (between the bumper and rad). 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 2a. one sensor wire is adequate. 5. 8′ MegaSquirt Wiring Harness for MS3X. The cam sensor will go to the MS3X db37 but the ground. All you are doing is connecting the OEM plugs to the FlowForce harness. 8′ MegaSquirt Wiring Harness for MS3X 5 out of 5 $ 114. Ok. In this video the multiversal-timelines become intertwined, the editor screws up and shoulder pads! In all seriousness, I some wha. 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). 57 – The MegaSquirt 3 is a drop in daughter card that greatly expands the MegaSquirt’s functionality. I have. I use a VDO rpm gauge. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 99. And also while cranking. Distance. Ms3x forums Megasquirt wire executing experiment mega ii plan part Ms3 and ms3x wiring questions Megasquirt ms3x wiring diagram. Made of the same TXL rated automotive grade.