Throttle Tip in Problem - 1.6NA / MS3Pro Mini
I just installed an MS3Pro Mini in my stock '92 1.6L. I have a Kraken turbo setup and some FF 640cc injectors ready to install once I get the stock car running reasonably on the Megasquirt.
I followed trubokitty's guide modifying a few of the pinouts to suit the pro mini. I also installed a 14point7 spartan 3 lite Wideband, a GM IAT and a Kia VTPS.
I loaded up his msq file and changed some of the settings to match my install. So far I've managed to get the car started and dialed in my 10deg static timing before switching over to the use table timing map. My TPS is calibrated and all my dials are reporting on the dashboard. The car seems to idle quite well, 1200RPM on cold start and then settles down into the 850rpm range once it warms up.
What I'm struggling with is when I tip in the throttle, my AFR spikes and RPMs drop. I read about perhaps needing to tweak my Accel Enrichment, but wanted to get some insight from the pros on here to see if there's anything I'm missing in my msq file. I also included a log of me trying to blip the throttle. Let me know if any more info is needed to help diagnose.
Thanks in advance!
I followed trubokitty's guide modifying a few of the pinouts to suit the pro mini. I also installed a 14point7 spartan 3 lite Wideband, a GM IAT and a Kia VTPS.
I loaded up his msq file and changed some of the settings to match my install. So far I've managed to get the car started and dialed in my 10deg static timing before switching over to the use table timing map. My TPS is calibrated and all my dials are reporting on the dashboard. The car seems to idle quite well, 1200RPM on cold start and then settles down into the 850rpm range once it warms up.
What I'm struggling with is when I tip in the throttle, my AFR spikes and RPMs drop. I read about perhaps needing to tweak my Accel Enrichment, but wanted to get some insight from the pros on here to see if there's anything I'm missing in my msq file. I also included a log of me trying to blip the throttle. Let me know if any more info is needed to help diagnose.
Thanks in advance!
I think I figured it out. I had MPX4250 selected as my MAP and BAR sensors but it turns out that the mini pro uses a 4bar MPX6400 MAP and a MPX4115 bar sensor. I changed them both and burned them to MS just now, and I'm able to give it throttle without it cutting out. Hopefully the weather complies tomorrow so I can drive it around the block to see how it drives and capture a meaningful log.
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JohnnyHess86
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May 12, 2021 11:39 PM





