CA18DET Safety Rev / Load Limit

[louiswun]

Under what circumstances, these two Limiter kicks in ?
I come across an S13 CA18DET, it cuts out only at hot engine at around 6,000 rpm.
When cuts appear, it got pops and bangs on the tail pipe.
The cut does not appear when engine is in normal temperature.
I want to check if the cut is ECU related.

[louiswun]

https://youtu.be/F2UkKaCLGQw
The red S13 is that CA18DET, In this video, cuts appear at 1:20

[Matt]

Safety limits only kick in normally when speed = 0 (ie no speedo signal) some ECUs also look at the neutral switch input in combination with it

To check which speed limiter is being used, lower them during testing to say 2000rpm and check it again