Engine control unit (ECU) 7700107343

Description

Engine control unit (ECU) by RENAULT, catalog number 7700107343. Confirmed catalog fitment: Renault MEGANE I BA0, BA1 (1995–2004), Renault MEGANE I DA0, DA1 (1996–2003), Renault MEGANE I KA0, KA1 (1999–2003), Renault MEGANE I LA0, LA1 (1996–2003), Renault SCENC I JA0, JA1, FA0 (1999–2003). For an accurate match, compare the number and identification with the removed part and confirm the vehicle specification by VIN. The fitment list is a reference and does not replace a vehicle-specific compatibility check.

An engine control unit (ECU) is the main electronic module responsible for managing engine operation. It processes signals from sensors such as RPM, air flow, temperature, pressure, oxygen sensors, and throttle position to control fuel injection, ignition timing, turbo operation, EGR system, and other engine functions.

The ECU is the central “brain” of the vehicle and directly affects engine power, fuel economy, emissions, idle stability, and starting performance. It communicates with transmission, safety, and comfort systems via the vehicle network.

If the ECU fails, symptoms may include engine warning lights, unstable operation, poor starting, loss of power, increased fuel consumption, limp mode activation, or diagnostic communication issues.

Our catalog includes engine control units for many vehicle brands and engine types. Available options include:

genuine factory ECU modules

reliable aftermarket replacements

tested used units without water damage

modules for petrol and diesel engines

units for different software versions and configurations

Used modules are inspected for electronic functionality, connector condition, and diagnostic response.

Selection is available:

by VIN number

by ECU part number

by software version

by engine type

by vehicle model and year

Replacing a faulty ECU restores proper engine management, eliminates errors, and ensures reliable performance.

Compatibility

Fits 5 vehicles

Nothing found

About the manufacturer · RENAULT

Renault is a French automobile manufacturer and one of the largest automotive groups in Europe. Renault Group was founded in 1899 in France and for more than a century has been engaged in the development and production o...

Renault is a French automobile manufacturer and one of the largest automotive groups in Europe. Renault Group was founded in 1899 in France and for more than a century has been engaged in the development and production of passenger cars, commercial vehicles and automotive components. The Renault brand is widely represented in global markets and is part of the international Renault–Nissan–Mitsubishi Alliance. Under the Renault brand a wide range of genuine spare parts and components is produced for the company’s vehicles, including engine components, transmission parts, suspension elements, braking system parts, cooling system components, fuel system elements, electronic modules, sensors, body panels and various service and maintenance items. Genuine Renault parts are developed according to the manufacturer’s engineering standards and undergo strict quality control as well as durability and safety testing. This ensures full compatibility with Renault vehicles and stable operation of all vehicle systems. According to feedback from vehicle owners and automotive repair specialists, genuine Renault components are known for solid manufacturing quality, reliable performance and precise fitment without the need for modifications. Users also highlight stable vehicle operation after component replacement. The most commonly mentioned drawback is the relatively higher cost compared with some aftermarket alternatives, although many drivers consider genuine Renault parts the best option for maintaining factory specifications and long‑term vehicle reliability.

Additional information

Engine control unit (ECU) by RENAULT, catalog number 7700107343, is listed for vehicle repair or maintenance. The catalog identifies the item as “Engine control unit (ECU)”. Confirmed catalog fitment: Renault MEGANE I BA0, BA1 (1995–2004), Renault MEGANE I DA0, DA1 (1996–2003), Renault MEGANE I KA0, KA1 (1999–2003), Renault MEGANE I LA0, LA1 (1996–2003), Renault SCENC I JA0, JA1, FA0 (1999–2003). Fitment is based on the catalog links between the part and vehicle bodies. It helps narrow the search, but final compatibility must be confirmed for the exact vehicle specification. The primary ordering references are part number 7700107343 and manufacturer RENAULT. Parts can differ within the same vehicle model by production year, engine, transmission, installation side, or position. Before purchase, compare the number and identification with the removed component and verify body, year, and specification by VIN. Also compare appearance, connectors, mountings, dimensions, and included items whenever those details are relevant to this part.

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