Discover the function, operation and diagnosis of Bosch CIS Lambda and CIT electronic KE) fuel injection systems.

K-Lambda Systems

Learn the purpose of lambda control.

Identify the various components and learn the tools required for diagnosis and repair.

Examine closed-loop operation, and the various modes of open-loop operation.

Learn how the fuel distributor works in the lambda system.

Measure the frequency valve duty cycle.

Diagnose and adjust the lambda system:

• interpret dwell readings,
• adjust CO mixture,
• test the temperature switch, oxygen sensor and wide-open throttle switch.