CCarlisi

Based on my research (reading all the posts by Enzo250and Rice Racing, and the limited material on the Autronic website), it appears that the SM2 simply flips on the secondary injectors at the full duty value of the primaries at the transition point rather than progressively bringing them online. Does the SM4 work the same way?

CCarlisi

Correction to the above post/question: I am trying to find out if the SM4 can gradually phase in the secondary injectors or if they just flip on. After doing some more research I discovered that 'sequential injection' is a label used for something completely different.

Bad2ndgen

The sm4 is gradual based on rpm and load and is is user definable as to when the secondary's come online based on a percent of duty cycle.

I hape that made sense... its late

CCarlisi

Thanks for the reply. Where do you adjust this in the software? I would assume it is regulated under M2, but nothing jumps out at me.

a7r

M2 -> Injector Trims?

Bad2ndgen

Yes, injector trims... You use these to gradually add duty cycle based on load and rpm's.

enzo250

Yes the injector trim tables is where you can adjust your secondary injectors.