KA24DE-T Injector Resize TP Question

Discussions concerning the M7790 cpu

Moderator: Matt

Matt
Site Admin
Posts: 8219
Joined: Sun Jan 29, 2006 1:45 am
Location: Adelaide, Australia
Contact:

Re: KA24DE-T Injector Resize TP Question

Post by Matt » Fri Jul 20, 2018 12:11 pm

You can see here the rise in injection time with TPS increasing (MAF of course too) goes from 8.4ms to 7.2ms over a 0.4 second period
TPS_Enrichment_inj_time.PNG
TPS_Enrichment_inj_time.PNG (12.56 KiB) Viewed 306 times

Matt
Site Admin
Posts: 8219
Joined: Sun Jan 29, 2006 1:45 am
Location: Adelaide, Australia
Contact:

Re: KA24DE-T Injector Resize TP Question

Post by Matt » Fri Jul 20, 2018 12:15 pm

The throttle enrichment itself is not causing the lean spot. The 'hump' or lean spot we are seeing appears not to come from injection time (since that is steady (as we can see from the GREEN line in your log, but the AFR purple shows the hump)

The short term trim (light purple) in your log happens before the AFR lean spot. So try adjusting the maps in this area first

Post Reply