Professional Wire In & Plug-n-Play EFI Systems

Contact our Technical Sales Team to discuss the perfect system for your Engine Management Needs! Email us at [email protected] with details on your vehicle, engine any must-have features and we’ll make sure you’re pointed in the right direction! Professional systems When your time is money (or you just don’t have time to spare), it’s worth…

Application Docs

How to jumper and configure your DIYPNP to get your car fired up on the first try This list of Application Documentation articles covers how to install and configure your DIYPNP MegaSquirt engine management system.   DIYPNP Documentation for 1987-1992 BMW 325 DIYPNP Documentation for 1988 – 1991 Chevy TBI V8 DIYPNP Documentation for 1988…

VVTuner Standalone Programmable VVT Controller

Introduction An old hot rodding trick is to change the amount of cam advance to produce small changes in the way an engine behaves. Advancing the cam can add low RPM torque at the expense of high RPM power. Retarding the cam often has the opposite effect: It adds power at high RPM and takes…

How to Use the MegaSquirt 5.0 Mustang Adapter Harness

Note: The adapter harness kit is discontinued. This page is for reference for people still using this harness.   For the latest in EASY Plug-N-Play Engine Management Solutions for 5.0 Foxbody and SN95 Mustangs check out these products: https://www.diyautotune.com/product/ford-foxbody-mustang-5-0-1986-1993-ms3pro-pnp-plug-and-play/ https://www.diyautotune.com/product/ford-sn95-mustang-5-0-1994-1995-ms3pro-pnp-plug-and-play/ https://www.diyautotune.com/product/megasquirtpnp-pnp-ecu-86-93-ford-foxbody-mustang-5-0/ https://www.diyautotune.com/product/megasquirtpnp-pnp-ecu-94-95-ford-sn95-mustang-5-0/     If you haven’t already, please read the ‘disclaimer’ at the top…

How to MegaSquirt Your BMW E30 325i and Other M20/M30 Applications

MegaSquirt installation on BMW M20 and M30 engines, using the factory crank trigger MSPNP ALERT! Check out our out of the box plug & play solution for 87-92 BMW E30 325i, ready to plug into your factory harness!  Typical installation takes around an hour. It’s ready to run this engine out of the box, with no…

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2008 American Road Race of Champions

November 7-9, 2008 – Road Atlanta Here’s a few pics I snapped at the 2008 ARRC Enduro event last Sunday 11/9/08. Mac Spikes and co-driver Myron Perry (the yellow car #4 car) took 1st Place in ITA and forth overall, running an MSPNP ECU that we tuned out for him a few days before the…

MS3Pro & MS2 Megasquirt Wideband Installation

Wideband Overview A wideband oxygen (O2) sensor is vital for tuning and monitoring the air-fuel ratio (AFR) in engines, particularly when utilizing aftermarket Engine Control Units (ECUs) like Megasquirt. Unlike narrowband sensors, which only signal deviations from stoichiometric AFR (14.7:1 for gasoline), Megasquirt wideband setups offer precise readings across the AFR spectrum. This accuracy is…

DIYPNP Documentation for 1985-1986 Toyota Supra

NOTE: The DIYPNPN52-K Kit has been discontinued as of 8/30/18.   (If you found this page looking for our JZA80 MK4 Supra 2JZ Plug and Play PNP ECUs– click here!) 1985-1986 Toyota Supra USDM 5MGE MT Test Vehicle Details: The vehicle used for drawing up these application docs was a USDM 1983 Toyota Supra.  The wiring…

DIYPNP Documentation for 1983-1984 Toyota Supra

NOTE: The DIYPNPN52-K Kit has been discontinued as of 8/30/18. (If you found this page looking for our JZA80 MK4 Supra 2JZ Plug and Play PNP ECUs– click here!) 1983-1984 Toyota Supra USDM 5MGE MT Test Vehicle Details: The vehicle used for drawing up these application docs was a USDM 1983 Toyota Supra.  All factory electronics/ignition…