Lambda Control

Download the full database via torrent (~1.1 TB) | Download Brad's custom LEMON patches

Lambda control is integrated in ECU functions. Output signal to the differential pressure regulator used in Lambda control.

Signal range of differential pressure regulator current is 0 16 mA. A minimum signal of approximately 8 mA is needed to affect a change. Lambda control is made inoperative by signal from ECU under these conditions:

Oxygen sensor not ready for operation or is defective.
During deceleration shut-off.
Under full load conditions.
During acceleration enrichment or when starting engine at coolant temperatures below 60°F (15°C) until coolant temperature reaches 105°F (40°C).

CAUTION: With ignition on or the engine running, the plug on the CIS-E control unit must not be disconnected. Voltage or current peaks can damage the ECU.