1987-1993 BMW E30 MegaSquirt Gen2 PnP Engine Management System by MegaSquirt

Fully Plug and Play Installation – No wiring required for basic functionality. Average install time is under 1 hour! The fuel and ignition base maps are pre-loaded to help your engine start on the first turn of the key.

Supports most aftermarket wideband sensors and offers real time tuning and data logging with a laptop connection.

Features

• 16×16 Fuel Tables allow high resolution tuning
• 12×12 Ignition Tables
• Multiple Acceleration enrichment strategies
• Closed Loop Idle Speed Control
• Air Conditioner Control
• Bank to bank fuel control with stock wiring, or 3 channel semi-sequential fueling with minor wiring changes
• Onboard peak and hold drivers support both high and low impedance injectors – No external ballast resistor is needed!
• Allows removal of stock airflow meter
• 12×12 Air Fuel Ratio Target Tables for use with wide band O2 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 44PSI of boost
• Overboost 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!
• CANBus connector allows interconnection of other MegaSquirt-compatible devices for additional functions (EGT Input, Automatic Transmission Controller, Additional Sensors... the possibilities are limitless!

Please Note:

• This ECU is NOT compatible with 325e models with the eta engine (except the 1987 “Super Eta”)
• This ECU is NOT compatible with the 1992 E36 chassis 325i with the M50 engine. In 1992, the convertible used the E30 chassis, while coupes and sedans received the new E36 chassis. The two chassis used a different ECU design.
• Some European 325i models for the 1987 year used an ECU with a part number of 0 261 200 073 or 0 261 200 081; this ECU is not compatible with the stock wiring on these cars.
• Also, BMW 8793 E30 Gen2 Plug and Play may not work with automatic transmissions on the E34 or E32 chassis, which rely on the fuel consumption signal for the transmission computer. Automatic equipped E30’s used a hydraulic transmission control that isn’t an issue.

Applications

• 1987 – 1992 325i (E30 chassis with M20 engine)
• 1988 – 1992 735i (E32 chassis with M30 engine)
• 1989 – 1990 525i (E34 chassis with M20 engine)
• 1989 – 1993 535i (E34 chassis with M30 engine)
• 1991 – 1993 M5 (E34 chassis with S38 engine)

What's In The Box?

• 1 - MegaSquirt Gen2 PnP ECU
• 1 - Serial tuning cable (6′)
• 1 - Rear Options connector and pins
• 1 - Vacuum Hose for MAP Signal (6')
• 4 - Screws for ECU mounting
• 1 - Documentation USB Stick
• Tuning Software

References

• MegaSquirt PnP Gen2 Manual
• Installation (BMW 325i)
• Installation (BMW 525i / 535i / M5 / 735i)

Warranty

• Manufacturer Standard Warranty