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. See the Setting Up manual for more detail on version numbers. 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. 0 PCB, everything in the standard Bill Of Materials, the MS3 daughter board kit, the case, pre-machined endplates and heatsink bar. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. Description. 2 Megasquirt Installation; 2. Color coded wiring with labeling printed on the wire every 6 inches — no paper tags here! Heavy duty metal DB37 hood for superior RFI/EMI shielding (no cheap plastic ‘metalized’ hoods used on our harnesses) This is the harness for the MS3X Expansion board. Heavy duty metal DB37 hood for superior RFI/EMI shielding (no cheap plastic ‘metalized’ hoods. I was using cylinder #4 to set the timing offset. 8′ of TXL High temp automotive grade wire. $23. The R pin is the HEI module’s tach output. 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. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. 1 ecu that is the vanos motor. 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 (Mfg#MS3X-Hrn). 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. 49 IATwPiggy: Intake Air Temperature Sensor $9. 99. 1 PWM IAC output – can be repurposed as. 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. 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. 24″ MegaSquirt Pigtail MS3X Harness $ 79. ( 6 customer reviews) $ 1,599. Add to wishlist. 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. MegaSquirt MS3X Wiring Bundle - sequential fuel injection and ignition (Dual Stage Nitrous, 2nd O2 Sensor, Boost/Launch Control, etc) 23" LongMs3 wiring diagram ms3x tracking gauge issues down help megasquirt questions grounding question miata o2 turbo fuel reply miataturbo portsWideband aem ms3 canbus pnp 2001 straightforward helpful Wiring diagram megasquirt sensor ms2 ms3 crank position harness diyautotune fc db37 ms1 switch work signal rpm problem thumbnail. View Profile View Forum Posts. The R pin is the HEI module’s tach output. 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). by JoeC » Sat Apr 13, 2019 5:57 pm. 0pcb. 00 MSHarness: 10' main board wiring harness $79. For input I've tried datalog in, tableswitch, and the other ground switching input that I can't recall at the moment. MS3X MegaSquirt 3 with expansion arrives equipped with features surpassing MS2 and MS1 systems, like sequential fuel and spark, 2 step, progressive nitrous, boost control, onboard traction control and much more!. Diyautotune harnesses. For many first-time users, it may be tempting to re-use old connectors and wiring. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. Some MS3X harnesses don't include shielded wire on their trigger input. . 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. The harnesses worked out great but what I noticed was that I started soldering and heat shrinking before I had all of the wires ran so I ended up having to unsolder and resolder a couple connections (Especially the Sensor_GND) a couple times and pull loom apart to add another. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. I have pictured what i think is the main starting circuit relays or the main relays off of the zxt. 50. The genuine B&G partial kit with V3. 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. nathaninwa Super MS/Extra'er Posts: 2628 Joined: Wed Sep 15, 2004. Add to cart. I am running fully sequential fuel and spark via MS3X. 57, put main board JP1 in the 1-2 position and J1 in the 5-6 position. Powered up my MS3x 3. MS3X/V3. x. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . This version of the documentation applies to: • MS3 on a V3. 3) MS3 Cam Input (Dual VR v2. Will either of these things cause issues. I even pulled the Ms out and made sure the jumper was installed for the cam input. 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). MS3 3. 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. Matt Cramer -1966 Dodge Dart slant six running on MS3X. $114. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . 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. Ibrahim Nzioki On Twitter 2 Engine Harness Layout Since The Donor Was From An E36. Would 18 gauge be alright to run from the MS. 18" pigtail harness for VVTuner variable valve timing controller. harness side) when showing db37 pinout at all times. 8. AMP’d MicroSquirt ECU hardware features. by 87ponygt » Wed Dec 30, 2015 3:22 pm. 2. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . On a V3. 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. 49 $ 6. Find DIYAutoTune MegaSquirt MS3X Wiring Harnesses and get Free Shipping on Orders Over $109 at Summit Racing! DIYAutoTune MegaSquirt MS3X. Ground – run the ground wire from the box to the corresponding injector. 3 Wiring Harness; 2. ,230/232 @. At least that's what the wiring diagram that came with it says. MegaSquirt MS3X Wiring Bundle – 23″ 5 out of 5 $ 29. I wrote the 3 wire mode so the 3-wire valve can be driven as the manufacturer intended. Notably, the car features a BMW E46 M3 6-speed transmission, a Thayer Motorsport upgraded Limited Slip differential, and a meticulously assembled engine. 57 with MS1/Extra firmware. 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:. Color coded wiring with labeling printed on the wire every 6 inches — no paper tags here! Heavy duty metal DB37 hood for superior RFI/EMI shielding (no cheap plastic ‘metalized’ hoods used on our harnesses) This is the harness for the MS3X Expansion board. 8′ wiring harness or 24″ wiring pigtail; MS3X harness or 24″ MS3X pigtail; GM open element IAT sensor; 3/8″ NPT bung in aluminum or stainless steel; MS3 USB tuning cable; W ideband O2 sensor system; Feedback welcome. External Ignition Wiring. Top. I am using a preassembled ms3x system with a 3. However, a dmm reveals no shorts to ground in the crank sensor wiring and continuity between pins on the DB-37 and crank plug. This is a shorter version of the harness for the MS3X Expansion board. there are some other controllers that. Top. dependant on their location relative to their location in the harness. 1. This version of the documentation applies to: •. MS3X wiring and settings. MegaSquirt MS3X Wiring Pigtail – Length = 24″. Pin 15 is the ground circuit for the coil packs and pin 45 is shielding for that circuit. Wire spark output A (MS3X pin 14) to the stock ignition module trigger wire. 1A) internally wired to MS3 Main Connector 27 IAC1B Blue/Red . 57 mainboard. Would 18 gauge be alright to run from the MS. Under the hood I just made 'pigtails' from the other side of the multiplugs where i was adding new wiring, and ran wires to that, soldered, heat shrink. Attached is a picture of VAG Logic Coil Pin-outs. ( 4 customer reviews) $ 114. I did a MS3x install last winter and used DIY's 10' wiring harnesses. 2. Any help would be appreciated. Dated: Hardware manual covering specific wiring and 3. External Ignition Wiring. 0! Perfect for your motorcyle, snowmobile, or personal watercraft! Or control your auto trans. Share. I am getting ready to purchase a MS3X Kit, I just wanted to get anyone's ideas of anything I have missed. . 1 Best Practices. MS3&MS3X v. 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. 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. 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. 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. 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. ( 14 questions) 5 out of 5 based on 8 customer ratings. Megasquirt-3 Setting Up manual PDF WWW. MegaSquirt DIYAutotune SystemsI 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. You will also notice that the "sensor ground" wire on the DIYautotune harnesses grounds to the same point as the other grounds for MS3. Just like a short run of the MS3X harness, but with no DB37 connector. If I am using an MS3 with MS3X, do I use this harness or the MS3X harness? The MS3 with MS3X has two DB37 connectors, each of which use a harness. 57 with MS3X $99. During installation I added the wire from S12 to C end of D1 on the MS3X card per page 231/2. 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. 21 the ecu powers on. 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. Over Boost Switch - Left of center on front of IC – (930-606-101-00-M100) Pin 4 – Green / Red. MS3/x ground wiring. 9 Magnum. 57 with MS3X add on. 5″ high. g. We've wired up Megasquirt (MS2, MS3X, MS3Pro) from scratch, AEM FIC, AEM EMS-4, FuelTech, Haltech, and can wire up anything else if desired. 2 digital outputs. You will be using the MS3X Ignition Drivers NOT the Mainboard drivers. Overview. D LS truck coils (round w/ heatsink style). MS3X/V3. MegaSquirt MS3X Wiring Harness – 8 feet 8′ of TXL High temp automotive grade wire. Just like the MS3X harness, but with no DB37 connector. Bought a used 6. MegaSquirt MS3X Wiring Bundle – Length = 23″ ~23″ of TXL High temp automotive grade wire. Connect a 0. MS3Pro ULTIMATE Pinout Glossy Card. This MS3x Plug and Play setup offers much more than your standard EFI control. I am opting to run sequential injection rather than bank-fire and will use an MSD box to fire the coil. 2) MS3 Sensor Ground PIN 7 Not connected at this time since no TPS, IAT, Coolant, O2's are connected. Found it relatively cheaply at 4K. 4 coming shortly after this one. ( 7 questions) 5 out of 5 based on 6 customer ratings. The R pin is the HEI module’s tach output. 3. This is for a rear engine. 0 and higher code; some earlier codes used different wiring. 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. 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. The R pin is the HEI module’s tach output. I need some advice from the group. 3 high current digital/pwm outputs. I have a m50 NON-Vanos motor with a Motronic 3. This manual covers MS3X/V3. Both on the. In step 22, install the stepper IAC jumpers (all of our assembled MS3 units are by default configured this way). 00. All you are doing is connecting the OEM plugs to the FlowForce harness. 8′ MegaSquirt Wiring Harness for MS3X. 3) MS3 Cam Input (Dual VR v2. To start viewing messages, select the forum that you want to visit from the selection below. 4 Scope of advice with MS3X; 2: Megasquirt System Hardware. 5bar map built into the MS unit. We've got a pre-assembled MS3 with the MS3X extra board, and I believe it is a V3. At least that's what the wiring diagram that came with it says. 1 Overview; 2. 6 Outputs; 2. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here!. MS3x Wiring Questions. 500 Hwy 133. All I have are the ignition coils from the original bike. 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. And the newest version of tuner studio. Description. 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. The extra wire in the shielded cable that should be in Pn #2 on the hardware guide just seems to have been spliced into one of the chassis grounds. 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 DB37Heavy duty metal DB37 hood for superior RFI/EMI shielding (no cheap plastic ‘metalized’ hoods used on our. 2a. 0 MicroSquirt with 30″ Harness is an entry-level, fully assembled ECU and universal 30″ pigtail with varied applications targeting power sports, single cylinder all the way up to 8 cylinders. Regular price2. Shop for the best Fuel Rail Pressure Sensor Connector for your vehicle, and you can place your. 57 ECU with MS3X. Just like the MS3X harness, but with no DB37 connector. I'm tapping into the connector in the tunnel. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. 3) MS3 Cam Input (Dual VR v2. C1, and B1 body harness connectors to get power and the auxiliaries working. 2 general purpose on/off outputs – can be repurposed as spark outputs with switchable pull ups. 1. All wiring is automotive grade and the connector hood is metal. MS3 units with MS3Xpander will need a second wiring harness; we carry a ready made one priced at $86. Posts: 70. . VISIT US. 8′ of TXL High temp automotive grade wire. 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. 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. Heavy duty metal DB37 hood for superior RFI/EMI shielding (no cheap plastic ‘metalized’ hoods. 5″ tall including the mating connectors. ( 8 customer reviews) $ 1,749. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. 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. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. 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). I wrote the 3 wire mode so the 3-wire valve can be driven as the manufacturer intended. 0 engine in my 1988 Mustang that had a 4 cylinder previously. The R pin is the HEI module’s tach output. SAYS IF HALL SENSOR. one sensor wire is adequate. 5″ long (including the mounting ears), 4-5/8″ wide, and 2. x (See the Setting Up manual for more detail on version numbers. Starter is a new HiTorque unit. SAYS IF HALL SENSOR. 00. 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. I am installing a 1997 Ford Explorer 5. Add to cart. 5 digital input/ output. SE EFI Installation Manual. 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. Description. 3. (This is ohms law. 6 part running on a 3. SAYS IF HALL SENSOR. 99. 1) MS3 Main board 15-19 grounds connected to engine block, MS3X wire harness not connected at this time. 3) MS3 Cam Input (Dual VR v2. . 0: Solder a 1K resistor to a length of wire and connect it from TachSelect to S5. 8′ MegaSquirt Wiring Harness for MS3X. 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!. MS power; I have kept an old 82zxt harness that was in amazing condition and I have been canning parts from it. 5″ long (including the mounting ears), 4-5/8″ wide, and 2. For example, the MS3X "boost" output equivalent on the MS3-Pro is "high current out 3". 99. Wire the distributor’s VR sensor to the HEI module VR inputs. 5 out of 5 $ 114. Add to cart. 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. It's very detailed. SAYS IF HALL SENSOR. 5 Sensor. Now to remove the grommet you'll need to use a flat head screw driver from the engine bay and pop it out. My questions: 1. Would 18 gauge be alright to run from the MS. 3) MS3 Cam Input (Dual VR v2. Distance. 5 out of 5. I pulled the wire harness out and check all my wiring. I use a VDO rpm gauge. 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. 3. MegaSquirt 3 ECU with MS3X Expansion. 1 ecu from bosch (Code 402) and have only been able to find wiring diagrams for the similar 3. i know i have 4 extra fuel/spark wires. I was poking around tuner studio and noticed that I had the ability to set the firing order once I. MS3 w/code 1. Well at this point between the wiring. . This version of the documentation applies to: • MS2 on a V3. That puts the ground for both sensors going to the main board pin 1. 2 Megasquirt Installation; 2. now can i use the spare 4 fuel or. 00 MS3X357-C_BL: Assembled Megasquirt-III V3. Those are the pins you would use to ground your EMS and coil drivers. I am using a preassembled ms3x system with a 3. Be sure to follow the guidance here to avoid common mistakes that will often lead to problems. All wires are color coded and printed with their functions. 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. 57, solder a 1K resistor in the R57 position. MegaSquirt MS3X Wiring Harness - 8 feet 8' of TXL High temp automotive grade wire. x Does not apply to other Megasquirt products. 99. 8′ MegaSquirt Wiring Harness for MS3X. On to all the injectors. This product is manufactured in Gainesville, Georgia, USA. 57 assembled kit, both harnesses,elec boost controller,iac adaptor . 31. 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. 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. Number Of Wires: 3. $79. Built a Megasquirt Computer to handle spark and ignition. 2 Soldering or crimping; 3. Pins 19 through 14 should remain bundled on an adequately sized ground wire to the engine block. 57 mainboard with MS3X as shown above running firmware MS3 1. GeorgePatches wrote: I actually found the answer on the megamanual website for the MS2. 4. the universal Terminator X 550-937 kit is like $1070. 1. 20 pages. Last edited by jeffmarsh750 on Mon Jun 02, 2014 5:46 am, edited 1 time in total. 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. MS3X/V3. Would 18 gauge be alright to run from the MS. We’ve custom printed these to include all. 3. 57 Hardware Manual Megasquirt-3 Product Range MS3 1. Add to cart. I am now trying to wire together an ignition system, but I'm essentially starting from scratch. 8′ of TXL High temp automotive grade wire. 00. Color coded wiring with labeling printed on the wire every 6 inches — no paper tags. 2 digital outputs. 99. Re: MS3 wiring harness colours - standardisation. The crank sensor shield is also listed as Pin #2, but that just seems to be another ground wire on my harness that was routed out towards the sensors. Hi 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. DIYAutoTune Wiring Harnesses MS3X-Hrn DIY-MS3X-HRN. I have one with with MS3X in my Squareback. It ought to work with a modded V3. . I think I read some where that its all 20 gauge wire. Would 18 gauge be alright to run from the MS. - Full custom harness builds - DIY wiring solutions - Circle track harnesses - Standalone installs. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here!Yesterday my wiring harness was finished. 3. 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. 4. 8′ MegaSquirt Wiring Harness for MS3X. Look up crankposition sensor recall m52. 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. 5 4. 1. MS3x Wiring Questions. This confuses me. Get the serial comms set up. Wire gauge on the ms3 pro harness. . Megasquirt MS3X > 3. 6 wires off main harness terminate on engine sensors and switches. 3) MS3 Cam Input (Dual VR v2. Check Details Part 24: megasquirt ms3-pro. Our USA-assembled map sensor uses a universal keying that is compatible with pigtails for 1, 2, and 3 bar MAP sensors. Just to note, the motor will be turbo-charged, and I will use my MS3x to control box spark and fuel. 8′ MegaSquirt Wiring Harness for MS3X. Re: Megasquirt ON BMW m52 Engine. 3) MS3 Cam Input (Dual VR v2. The first line in the product description, is this: MegaSquirt MS3X Wiring Bundle – Length = 23″ The second line in the product description, and the first line in the feature list, is this: ~23″ of TXL High temp automotive grade wire. Would 18 gauge be alright to run from the MS. It looks like both sensors use the same ground connection. Color coded wiring with labeling printed on the wire every 6 inches. Use these settings in TunerStudio.