Available Models

UPDATE: The DIYPNP prouct line has reached the END OF LIFE.  DIYAutoTune will continue production on the N76 ONLY, however, this page will remain for archive purposes. Click the DIYPNP Model Number below for the application list: B55   D56   F60  J64  J88  J93  N42   N52  N76  N122 DIYPNP B55  (Bosch Motronic Style 55 pin) Part# DIYPNPB55-K (DISCONTINUED) (Note:…

How to MegaSquirt Your Mazda Miata

Please read the ‘disclaimer’ at the top of the parent page here. This documentation is for using the MS1/Extra firmware version 029v or later, MS2/Extra 3.3.1 or later, and MS3 1.2.4 and later. Plug and Play Solution available here.   How to MegaSquirt your Mazda Miata   Application: 1990-1997 Mazda Miata, or later models by…

DIYPNP Documentation for 1990-1993 Mazda Miata

1990-1993 Mazda Miata USDM 1.6L B6 MT   Test Vehicle Details: The vehicle used for drawing up these application docs was a USDM 1991 Mazda Miata 1.6L with a manual transmission.  The factory wiring harness is in perfect condition. Other notes: MAF removed GM open element IAT installed IGN1A Race Ignition Coils installed in a…

Miata Torsen Diff ‘Clover’ Removal

Symptom: Tinny metal on metal vibration noise in the rear of the drivetrain near the differential.  Only when moving, but doesn’t change directly correlating to speed.  The car in question had a 99 manual diff in it. More Info: So we had blown out the tranny in our turbo Miata at the last autocross, just…

MegaSquirt Systems Compared

With all the different MegaSquirt options out there, choosing the right system can be a bit intimidating. The first decision you’ll need to make is the overall approach. Do you want to keep expenses as low as possible by soldering your own kit together? Or would you rather spend a bit more to save a…

JimStim v1.5 MegaSquirt Stimulator with Wheel Simulator – Unassembled

SKU: jimstim-k

Use this board to test the MegaSquirt’s inputs and outputs on the bench, before you install it on a car! The JimStim features a microcontroller which allows the simulation of up to 30 different toothed wheels, in addition to the standard distributor signal of the standard stimulator. Instead of having the Megasquirt set to “Stim for…

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JimStim 1.5 MegaSquirt Stimulator with Wheel Simulator – Assembled

SKU: jimstim-c

DIYAutoTune Part# JimStim-C JimStim is essentially an engine simulator, a microcontroller which allows the generates up to 30 different toothed wheel signals, in addition to the standard distributor signal. Test your RPM input on the Stim, or tell the JimStim to provide a signal like the one from a Neon, Miata, Subaru, most Fords, and…

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MegaSquirt-I Programmable EFI System PCB2.2 – Kit

SKU: MS122-K

*This product or components that make up this product have reached End of Life.  The ECU is now discontinued – this page is for reference only. MegaSquirt-I with V2.2 Main Board MegaSquirt programmable EFI Engine Management System from Bowling and Grippo. Install fuel injection on anything from a single cylinder lawnmower engine to a fire…

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Eric Anderson’s Supercharged SSM Miata

Knoxville, TN native Eric Anderson has put together probably the most successful autocross car in in the US, and probably the world. Meet LaFawnda, his once upon a time daily driver now turned full race car and multiple time SCCA National Championship winner. @eunos735 #scca #funwithcars #mazda #hoosier #miata #prosolo #burnout #fyp #getsome #themconesbecallin #fortheboys…

Kevin’s 1990 Mazda Miata and 1991 Mercury Tracer AWD

Kevin’s Mazda projects Kevin campaigns this MS1 equipped Miata in CSP.  It was originally a 1990, but was the recipient of a VVT 1.8 from a later NB miata.  Kevin used this car to develop the VVTuner Cam Control Module. This is a turbocharged, all wheel drive Mercury Tracer that Kevin built.  It has a…