MicroSquirt.com read only forum (Jan.15,2018)

I am about to convert a car from MSII to microsquirt. Currently I am running MSII v3 with code 2.3 on GM 3.1 with GM HEI with low impedence throttlebody. I had the car running with a good tune(dynoed) but the owner just soaked the ECU and fryed it, since most of my installations are in offroad cars ...

Tommorow I start on my journey to tune using lc-1 wideband. How will this differ from tuning with nb. I am having a hard time bringing in the upper end of the VE table and was advised that friends don't let friends tune boosted engines with nb sensor, So i took the advice and am installing wb sensor ...

Hopefully this is the correct file, I am new to the posting thing. I hear you on the narrow band, wide band sensor on the way. If you see anything I need to correct I would appreciate any advice.

Thanks
Blatzy

Need help with accel enrichment and upper end tunning. The car buckles under hard accel. and on the top end of 5000 rpm and 120kpa. I have tried to richen bins but no success. map side set at 3,6,9,14 and tps side set at 3 6 9 14 with 90% tps. do have last log attached. MSII v3.0 2.36 firmware on a ...

Can anyone tell me what to make of this datalog. I am having problems getting the car to run above 2800 rpm. The reading on the tach is eratic. I am running MSII 2.33 on a gm3.1 throttle body running 8-10lbs of boost any insight would be greatly appreciated.

I am running a ms II v3.0 with 2.33 firmware installed in a sandrail with a GM 3.1 throttle body boosted to 8lbs that has a slight rough idle. I was hoping that someone could view the log and point me in a direction. the car is running and but at idle it seems to idle rough. There is a fluxuation in ...

My map reading is currently around 95 at idle,absolutly no vacum leaks and the map sensor calibrated according to tuning recomendations. What would be the cause of this high reading could it still be the iac valve.

Thank You
Blatzy

Could anyone tell me the approximate map reading at idle should be. i live in the phoenix are, and I was told today that i should have a map reading around 25kpa. I am using msII with 3.0 on a GM 3.1 with 6-8lbs of boost. Also anyone with simular setup that can help with tables.

thanks
Blatzy

I have turned the Idle adjustment screw alll the wat out car still idleing at 1250, but this is with the IAC horn unpluged. Should this be Plugged and what steps do I take on dialing in the IAC stepper.

thank you

Blatzy

Taped over air horn brought Idle down to about 1200. Checked for leaks and couldn't find any. Apparently problem in IAC stepper This is a GM throttle body With GM IAC controlled by MSII. What now

Thank you
Blatzy