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Troubleshooting MegaSquirt Injector Driver Installations
Got a problem with the injector drivers on your MegaSquirt? This article will walk you through how to troubleshoot them. It is written for the V3.0 and V3.57 boards. The V2.2 is similar but the component names are different. It does not cover the MS3Pro line, MicroSquirt, MS3X, or MSPNP Gen 2, which use different…
Read MoreMegaSquirt Acceleration Enrichment Tuning
First things first… Before you start tuning the acceleration enrichment, make sure your VE tables are dialed in. Adding a correctly tuned amount of acceleration enrichment to an incorrectly tuned fuel table is still going to result in an incorrect amount of fuel. Since the acceleration enrichment is stacked on top of the fuel the…
Read MoreInstalling MegaSquirt in Parallel With the Stock ECU
While there are many cars where MegaSquirt can completely replace the stock ECU, on some cars you’ll need to leave the stock ECU in place. There’s several reasons why you might want to do this. On some installations, you might want to have the MegaSquirt control just the fuel and would rather not deal with…
Read MoreHow to MegaSquirt Your Nissan Skyline RB25DET (or Other RBs)
Application(s): Nissan Skyline RB motors with the OEM distributorless ignition. Level of control: Full Standalone EMS– Fuel and Ignition Control The Nissan RB series was never sold in the United States, but it’s been a popular engine to swap into 240SXs and other cars. The cam angle sensor has often been a bit of an…
Read MoreHow to MegaSquirt Your Z32 Nissan 300ZX
Application(s): 1990 to 1996 Nissan 300ZX VG30DE and VG30DETT motors with the OEM distributorless ignition. Level of control: Full Standalone EMS– Fuel and Ignition Control The cam angle sensor has often been a bit of an issue for MegaSquirt, but now with MS3’s new V1.1 code, you don’t have to disassemble the CAS for an…
Read MoreHow to MegaSquirt Your Chrysler, Dodge, or Mitsubishi 3.0 SOHC
Using the stock distributor Application(s): This article covers the 1988-1995 Mitsubishi / Dodge / Chrysler 3.0 SOHC V6, as used in K-car derived cars (Daytona, LeBaron, Shadow, Sundance, minivans, and other applications) as well as in the Mitsubishi Diamante and various Mitsubishi trucks. Level of control: Parallel installation — Fuel and Ignition Control. Most users…
Read MoreHow to MegaSquirt Your Honda or Acura
If you haven’t already, please read the ‘disclaimer’ at the top of the parent page here. Simplified spark output and VTEC control circuit schematic Models covered: All 1992-2000 Civics, Del Sols, and Integras 1992-2001 Prelude 1992-2002 Accord four cylinder models Some, but not all, OBD0 Hondas also work with this article. This covers many of…
Read MoreDIYAutoTune Product Software & Downloads
Latest Tuning/Utility Software Revisions TunerStudioMS is the software application that is used to tune your MegaSquirt EFI controller. The latest version for Windows, Linux, and Macintosh can be found at www.TunerStudio.com . MegaLogViewer is the software application used to view datalogs. The latest version for Windows, Linux, and Macintosh can be found at www.TunerStudio.com MS1,…
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