MoTeC Global Forum

Hello

After hot engine restart, Lambda CL remains disabled for over a minute.
How to easily Display all paramers that inhibit CL ?

Thanks in advance
D

The answer to this varies dependent on firmware, however there are two main components to this the determine it's operation.

1. Closed loop activation conditions are met
2. Lambda sensor is enabled, reading and not in fault.

Taking a pure guess based on your hot start description, there is probably a 60s time in your LTC engine run time parameter.

This is the value that allows you to delay heating the lambda sensor to start reading from it, which is done to help assist preventing thermal shock of the sensor due to any moisture in the exhaust.

Lowering this value will allow it to start working quicker.

If this is not the case, then check your post start fuel volume compensation table, and how long it is set to provide enrichment before going to 0. The closed loop will not turn on if you have any fuel volume compensations active.

Thank you Nathan. It is the post start compensation indeed.