Standard Ignition LX-340 Ignition Control Module

Ignition Control Module for GM Applications

Standard Ignition LX-340 is an ignition control module for distributorless and distributor ignition pickup applications across a wide range of Chevrolet, GMC, Buick, Pontiac, Cadillac, Oldsmobile, Geo, Isuzu, and related vehicles. It uses microprocessor-based circuitry with custom firmware to manage ignition control with stable electrical performance.

Fits 1985-1999 Chevrolet Silverado, N/A and fits 1985-1995 GMC Safari, N/A among many other GM cars and trucks. This part cross-references Carlson 7031 for the same application.

Key Features

• Microprocessor-based control circuitry with application-specific firmware
• Reverse battery protection for wiring mistakes during service
• ESD protection to help guard sensitive electronics
• Nickel-plated steel lead frame to reduce connector oxidation and maintain contact quality
• Double wire bond interconnect system for improved internal reliability
• 12-volt electrical system application
• Female connector gender with 2 connectors
• 6 male blade terminals for distributorless mounting locations

Detailed Description

The Standard Ignition LX-340 ignition control module is built for vehicles that rely on precise ignition timing and dependable signal control. It is a direct-fit style module for many Chevrolet Silverado, GMC K2500 Suburban, and Chevrolet Astro applications, along with numerous other GM platforms listed in the fitment data. The module’s electronic design focuses on stable operation, connector durability, and resistance to common electrical damage sources.

Standard Ignition LX-340 is a practical replacement choice when servicing ignition systems on older GM trucks, vans, and passenger vehicles. It is also referenced by part number LX340T in interchange listings, which can help when verifying the correct ignition control module for your vehicle.

What It Helps Solve

• Engine no-start conditions related to ignition module failure
• Intermittent misfire caused by unstable ignition signal control
• Hard starting from weak or inconsistent spark delivery
• Stalling or rough running tied to module electrical faults
• Connector contact issues caused by oxidation or poor terminal engagement

Installation Notes and Tips

Verify connector style, terminal count, and mounting location before installation. This module uses a female connector with 2 connectors, 6 male blade terminals, and a distributorless mounting location, so matching the original configuration is important. Confirm the vehicle’s ignition system and emissions setup against the fitment list, especially on 1987-era Chevrolet and Pontiac applications with U.S. emissions notes.

For best results, inspect related ignition wiring, terminals, and grounds before replacing the module. Clean, secure electrical connections help support consistent module performance after installation.

Quality Assurance

Standard Ignition builds this module with reverse battery protection, ESD protection, a nickel-plated steel lead frame, and a double wire bond interconnect system to support electrical reliability in service.