This module reads exhaust gases in real time and calculates the air-fuel ratio so a tune can be dialed in with data instead of guesswork. It works as a standalone wideband system on a carbureted engine or alongside any Aces EFI system.

ACES AS2040 Features:

• The module is built around the proven Bosch LSU 4.9 wideband oxygen sensor for accurate, repeatable air-fuel ratio readings.
• Air-fuel ratio data streams to the handheld over the CAN bus for real-time display and datalogging.
• The module integrates directly with any Aces EFI system or runs standalone on a carbureted or non-Aces EFI engine.
• A balanced air-fuel mixture reduces the risk of running too rich or too lean under load.