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DIYAutoTune MegaSquirt Gen 2 plug-and-play engine management systems are standalone units designed as direct-fit, factory ECU replacements offered for a variety of foreign and domestic vehicles. These powerful and cost-effective options typically require an hour or less for installation, and each includes a base map to get the motor fired up easily and ready for fine-tuning to match your engine's needs--from mild to wild. MegaSquirt Gen 2 ECUs get the job done with an impressive feature list that will let you do a lot more than you'd expect anywhere near this price point. DIY AutoTune MSPNP Gen 2 ECUs typically feature: * Fully plug-and-play installation--no wiring required for basic functionality * Base map is pre-loaded to help your engine start on the first turn of the key * Real-time tuning and data-logging with a laptop connection * Supports most aftermarket wideband sensors * 16 x 16 fuel tables allow high-resolution tuning * 12 x 12 ignition tables * Multiple acceleration enrichment strategies * Closed-loop idle speed control * Air conditioner control * Onboard peak and hold drivers support both high and low impedance injectors--no external ballast resistor is needed * Allows removal of stock airflow meter or stock MAF sensor, if so equipped * 12 x 12 air fuel ratio target tables for use with wideband oxygen sensor for precise tuning and table trim * Built-in 2-step rev limiter/launch control with flat shift * Real-time barometric correction * Internal 4-bar MAP sensor reads up to 44 psi of boost * Over-boost protection * Closed-loop boost control (requires boost solenoid kit) * Knock sensor input with adjustable sensitivity * Headphone output for knock sensor--listen for knock while you tune! * Table switching input--change fuel and spark maps on the fly for different fuels, nitrous activation, etc. * Input for flex fuel sensor--switch between E85 and gasoline on the fly! * CAN Bus connector allows interconnection of other MegaSquirt-compatible devices for additional functions, like: EGT input, automatic transmission controller, additional sensors ... the possibilities are limitless! * MegaSquirt Gen 2 plug-and-play ECU * MSPNP RS232 serial tuning cable, 6 ft. (USB adapter sold separately, if needed) * Tuning software and documentation USB stick * 6 ft. vacuum hose for MAP signal and "T" fitting * Four screws for ECU mounting
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$869.99
The versatile DIYAutoTune MicroSquirt Standalone Engine Management System with 8 ft. harness is an entry-level, fully assembled ECU and universal 30 in. pigtail with varied applications—targeting powersports, single cylinder all the way up to 8 cylinders with up to two fuel and four spark outputs. Over 40 different ignition modes are supported—from mainstream applications like GM LS1, Ford Zetec, Bosch Motronic, and Chrysler Gen III Hemis … to unusual modes like Renix Jeep and the Suzuki Swift GTI. MicroSquirt ECU hardware features: * 2 high impedance injector outputs; max peak current 4.5 amps * 2 dedicated spark outputs * 2 general purpose on/off outputs; can be repurposed as spark outputs * 1 PWM IAC output; can be repurposed as general purpose output * 1 dedicated fuel pump output * 2 variable reluctor conditioned inputs * 1 optoisolated RPM input * 1 flex fuel or general purpose switched input * 7 analog inputs MicroSquirt ECU software features - Supports speed density, alpha-N (TPS based), or MAF based fuel and spark tables - 0.66 microsecond injector pulse width resolution - Allows blending multiple load types, including specialized mode for independent throttle bodies - Supports a wide variety of OEM cam and crank position sensors - Accelerator pump or model-based acceleration enrichment - Closed or open loop idle speed and boost control - On/off nitrous control - Wankel rotary support: 2 rotor engines with separate leading and trailing spark tables - Staged injection - Table switching - 16 x 16 fuel tables - 12 x 12 spark tables - 2 step rev limiter (launch control) with no-lift shifting - Wideband AFR target table - Flex fuel sensor input - Real time barometric correction (external sensor required) - Sequential shift cut and air shifter control MicroSquirt with 8 ft. Harness Transmission Control Options: * MicroSquirt transmission control-free firmware allows you to use MicroSquirt with 30 in. harness to control a number of electronic automatic transmissions (gearboxes). It can work standalone or integrate with one of DIY's ECUs over canbus. * Control applications: GM 4L60E I GM 4L80E I GM 4T40E I GM 5L40E (dev) I A341E I 41TE (dev) I Ford 4R70W I Ford E40D (dev) I Subaru W4A33 and more. MicroSquirt with 8 ft. Harness CAN I/O Box Expansion: * Microsquirt I/O Box firmware allows you to use a Microsquirt as a plug-n-play I/O extension box for MS3 or MS3Pro ECUs. It can offer a useful I/O addition: - 7 Analog inputs (0-5 V variable) - 2 Wheel speed inputs (VR or hall type) - 2 Wheel speed (hall type) or ground-switch inputs - 1 dedicated ground-switch input - 2 high current PWM/switch ground-switching outputs - 4 mid current PWM/switch ground-switching outputs - 1 low current PWM/switch 0-12 V output - Perfect for capturing and logging vehicle speed and additional sensor data
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$388.00
DIYAutoTune MicroSquirt CAN transmission controllers with sub-harness seamlessly control your transmission. They provide a simple, plug-and-play integration with MS3-Pro, and directly mates with their LSx drop-on harnesses. They are available with a 4L80E or 4L60E sub-harness. Included with your DIYAutoTune MicroSquirt controllers: * 6-pin black connector for power, ground, and CAN bus * 8-pin gray connector for additional inputs * 18 crimp pins for the above connectors Note: * Harness for GM 4L60E transmissions with or without the LUF (lock up feel) control solenoid. You can also wire the harness to communicate with an MS2, another MicroSquirt EMS, MS3-Pro, or MS3 over the CAN bus. * Harness for GM 4L80E transmission includes wiring for the input shaft speed sensor, and can be used as a standalone transmission control solution with minimal wiring involved. But was designed to be a full plug-and-play, zero wiring solution with DIY 24x and 58x harnesses.
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$499.99
DIYAutoTune Smart Coils by AMP EFI produce CDI-level spark energy--without a CD ignition module. They're manufactured with a 19 amp IGBT ignitor built in and can be driven with a 5 V logic level output. Normally, you would use Smart Coils for distributor-less ignitions, such as a coil-per-plug application; however they can be fired sequentially or every crank revolution (wasted spark coil per plug). Smart Coil specs: * Minimum voltage output (no load, at recommended dwell): 40,000 V * Output energy: 103 mJ * Spark duration: 2.9 ms * Primary resistance: 0.5 ohms (not directly measurable) * Primary inductance: 4.8 mH (not directly measurable) * Secondary resistance: 8,500 ohms * Secondary inductance: 22.5 H * Turns ratio: 71.1 * Maximum current: 19 amps * Maximum battery voltage: 17 V * Nominal dwell: 3.0 ms * Maximum recommended duty cycle is 40 percent * Requires HEI-type plug wire ends/boots
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$71.00
For the recommended fast-response IAT (intake air temperature) sensor on forced-induction vehicles, DIYAutoTune offers IAT measuring devices with an open element. These proper GM-style sensors feature a design for use with all MegaSquirt and MS3Pro ECUs. They include a 6 in. wire pigtail with a weatherproof connector. Get your engine management system back online with an assist from DIYAutoTune IAT sensors.
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$24.49
DIYAutoTune hall effect sensors can be used as crankshaft or camshaft position sensors, and are also suitable for use as vehicle speed sensors (VSS). The threaded bodies feature a red anodized finish and includes two M12 mounting nuts. They run off 5 to 24 V and gives a nice square wave, so there's no variable voltage issues. Specifications are: * Operating voltage: 5 to 24 V * Maximum over-voltage and reverse voltage: +30 to -24 V * Maximum supply current required: 6 mA * Maximum output current sinking: 20 mA * Output type: Open collector * Triggering options: Magnet or ferrous metal * Maximum frequency: 15 kHz * Temperature range: -40 to +125 degrees C * Nominal air gap: 1.5mm * Thread pitch: M12 x 1mm * Overall length: 65.5mm, not including wires * Sensor material: Aluminum * Sensor orientation: Not directional * Recommended tooth size is a rectangle measuring at least 2.5mm x 6.35mm, with a 5.0mm tooth height.
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$102.99
DIYAutoTune electronic boost control solenoid kits can be used with the MS3-Pro/MSPNP as well as any DIY MegaSquirt EMS (with the appropriate mods), or with other electronic boost controllers to control boost by adjusting the pressure to a turbo wastegate. The MS3Pro, MS3X, MSPNP, and DIYPNP can drive these solenoids directly. The boost control solenoids operate on a frequency of 19.5 to 40 Hz and is practically a wire-in replacement for the now-discontinued GM EBC solenoid. They usually need a slightly lower duty cycle than the GM valve; if you're replacing a GM valve, DIYAutoTune recommends cutting back your duty cycles by 30 percent and then carefully testing and adjusting as needed. The kits include 1/8 in. barb fittings and mounting hardware.
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$62.99
DIYAutoTune TunerStudio tuner cables bring a whole new level of tuning refinement to your car, truck, or motorcycle. This Serial to USB port adapter works properly with all TunerStudio versions. It is highly recommend that the adapter be used if you're tuning a PC/laptop that doesn't have a DB9 Serial connector. Or, you can use another adapter with a genuine FTDI chipset (which this uses). Note: This adapter includes a 2 ft. extension cable, but is only recommended for use if you have vibration issues with the adapter plugged directly into your laptop. USB cable runs are more susceptible to noise than RS232. Therefore, in such instances, it's highly recommended to use the DIYAutoTune 6 ft. tuning cable in combination with this adapter for best results.
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$28.99
DIYAutoTune weld-in bungs for IAT (air intake temp) or CLT (coolant temp) sensors, particularly with MegaSquirt ECUs. Available in either 6061 T-6 aluminum alloy or stainless steel, the bungs feature a 3/8 in. NPT thread and come with a galvanized steel plug.
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$12.99
DIYAutoTune MegaSquirt MS3Pro plug-and-play engine management systems are standalone units designed as direct-fit, factory ECU replacements. They are offered for a variety of vehicles for off-road and race applications. These powerful and cost-effective options typically require an hour or less for installation, and each includes a base map to get your engine started with the first turn of the key, ready for fine tuning to match your engines exact needs. DIYAutoTune MS3Pro PNP ECUs typically feature: * Fully plug-and-play installation--no wiring required for basic functionality * Base map is pre-loaded to help your engine start on the first turn of the key * Real time tuning and data logging with a laptop connection * 8 GB internal data logging with built-in SD card * Supports most aftermarket wideband sensors * 16x16 fuel tables allow high resolution tuning * 16x16 ignition tables * Multiple acceleration enrichment strategies * Closed loop idle speed control * Air conditioner control * Sequential fuel injector channels with individual trim tables * Onboard peak and hold drivers support both high and low impedance injectors--no external ballast resistor is needed * Allows removal of stock MAF sensor * 12x12 air fuel ratio target tables for use with wide band O2 sensor for precise tuning and table trim * Multiple traction control strategies * Built-in 3-step rev limiter/launch control with flat shift and burnout rev limiter * Real time barometric correction * Internal 4-bar MAP sensor reads up to 44 psi of boost * Over boost protection * Closed loop boost control (requires boost solenoid kit) * Rally-style anti-lag * Water injection control--on/off or variable * Knock sensor input with adjustable sensitivity, crank angle windowing, and more * Table switching input--change fuel and spark maps on the fly for different fuels, nitrous activation, etc. * Input for flex fuel sensor--switch between E85 and gasoline on the fly! * CAN Bus connector allows interconnection of other MegaSquirt-compatible devices for additional functions like, EGT input, automatic transmission controller, additional sensors ... the possibilities are limitless! * MS3Pro plug-and-play ECU * Tuning cable * Tuning software and documentation on USB stick * 6 ft. vacuum hose for MAP signal and "T" fitting * Registered version of TunerStudio and MegaLog viewer
Not Yet Reviewed
$1,499.99
DIYAutoTune CLT/IAT sensors with pigtail are suitable for use as a coolant temperature sensor on all vehicles. They can also be used as an oil temperature sensor, and as an intake air temperature sensor on naturally aspirated vehicles if there are no severe vibration issues. DIYAutoTune CLT/IAT sensors are the proper GM-style sensors for use with the MegaSquirt line of ECUs and each one includes a 6 in. wire pigtail with weatherproof connector.
Not Yet Reviewed
$22.99
DIYAutoTune pigtails feature extra-length that makes them easy to bundle up into a single ignition control harness, without needing splices near the coil. The power and primary ground wires are 18-gauge to better handle the coil's power requirements; all other wires are 20-gauge, and genuine Delphi Packard connectors are used. They fit a number of other GM sensors and modules, including most recent 5-pin MAFs and some distributor-less ignition control units. Check the connector shape before ordering if buying these for an alternate application.
Not Yet Reviewed
$5.79
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$15.99
DIYAutoTune O2 sensor flanges allow you to swap in a wideband oxygen sensor without welding in an extra bung, and they match the factory bolt holes and outline exactly. These 2-bolt flanges have the bolt holes 44mm apart (center-to-center). If your factory O2 sensor mounts with two bolts instead of threading into the pipe, here is what you need to install a wideband.
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$15.00
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