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warm restart

Posted: Fri May 12, 2017 7:40 pm
by dpetro1
looking for some insight on the following issue. my car drops idle on warm restart. car starts up just fine but rpms dip to about 600 before recovering back to normal. then if i rev or move the car (pull out of a parking spot), the rpms will drop and the car will stall. seems to only happen for about 30 seconds or so then it works itself out. also, the car will sometimes drop rpm in traffic. the car has stalled a few time in stop and go situations. always restarts immediately though.
car is a 2012 civic si with ct-e supercharger, dw 550cc injectors. did not have this issue until the weather warmed up here in MD.
i have attached the cal and datalog. the cal is password protected by the tuner so im not sure if is helpful.
tuner had made a few adjustments but im still having the same issue
thank you for any input

Re: warm restart

Posted: Sat May 13, 2017 12:26 am
by R-12914
Your Engine runs damed lean, look here:
lean.JPG
lean.JPG (309.1 KiB) Viewed 1607 times
It is therefore absolutely no wonder, why the engine stalls!

S.TRIM vs. AFM.C should be +/-5, then the engine runs perfect!

If i look at your IAT-temp, the datalog was recording on a warm day!?

Which backyard tuner do you have?

Re: warm restart

Posted: Sat May 13, 2017 7:09 pm
by Hondata
You've presumable paid for a tune, so ask the tuner to fix it...

Re: warm restart

Posted: Fri May 19, 2017 2:30 pm
by dpetro1
thanks for the replies. i am working with my tuner on this issue