Why Tuners Love Haltech! - Reason #2: Mitsubishi 3000GT Throttle Response Data Logging and Tuning

Customer Communication Video
Diagnosing poor throttle response and making revisions in transient throttle (aka accel enrichment) in Haltech NSP.

[@evanhart5537]

Is there a follow up video to this? Did it correct the response, or was there a little more fine tweaking?

[@BourneThisWay]

I’m having the same problem where, when I blip the throttle, it sounds like it chokes and the AFR goes lean, then super rich. I frequently flutter the throttle to take off normally, and that choke up at the first blip is really annoying. Did you find a fix for that? I kept my Enrich Rate the same and have just been adjusting my Enrich Amount.

[@Morgamania2]

Yes, the only table you want to change is the Enrich Amount (Sync) table. (Definitely leave Enrich Rate alone.) Log the same values I was doing in the video and if your AFRs are the problem make the changes in that Enrich Amount Sync table as I did. Adding in a little timing in the Ign Corr table can also help. In the video you saw me bring the values down by 50% to 115 in the 750 RPM column and 105 in the 1000 RPM column. After more logging and revisions we ended up at 57.5 in the 750 column interpolated down to 50 in the 4000 RPM column and we were good!

[@BourneThisWay]

@@Morgamania2 so the values decreased going up the RPM range?

[@Morgamania2]

Yes, because this stuff really isn't used or necessary in the upper RPMs.