Well I got a retune on my 30r/780's/255fp..,, Here's some back round,, https://www.evolutionm.net/forums/sh...d.php?t=289328
Ok well the problem is after a run the car will dip into the low RPM's(800-100) and some times die!!! The car runs great on the new tune but dies from time to time and some times the rpm will go really low but won't die,,,I need some help..
Here is a log at idle and when it dies..I don't know if that will help...
Let me know what your guys think?? THANKS,,,,,

 

who did you get it tuned by?

 

+1

 

A tuner in LA CALI....

 

thats what mine started doing last night. i can get it to idle at 1k like its supposed to but only after i reset the ecu. other than that when i come to a stop the car tries to die unless i feather the gas. i cant figure out whats wrong at all. all the hoses and lines are connected the car isnt throwing any codes it just wont idle. does anyone have a stock evo 8 map?

 

My other tune was fine with no idle problem,,!!
Just to rich and to much timing,,,,

 

for some reason your not getting into closed loop, perhaps your tuner defeated it, but he neglected to supply any fuel for you to idle at. didn't I see about 20 afr when the car was trying to idle

 

exactly problem with my car currently but i haven't get enough the times to figure it out yet. I changed the sparks, no resolve. I adjusted the idle screw, no resolve. I changed the idle rpm, no resolve. I'm thinking the injectors or there're maybe some leaks, and also someone mentioned to about the bov. But the thing is the car was running fine before that.

Keep me updated if you figured it out. Thanks.

 

yeah thats exactly what i just got done doing! this is aggravating the **** outta me i can't think of anything else that could be causing the problem. the only thing i did that was different is run race gas (101) and ive done it a couple different times already so i dont know why it decided to mess up this time.

 

checked your TPS sensor?

 

Mine does the same thing. Sometimes it will idle fine and sometimes it wants to stall out.

OP: Look at your fuel trims, they are pretty far from the 100 and that is why you might be having the problem.

 

check your PCV. if its loose or bad you will not be getting that recirculated air and during idle you car will idle really low, almost die. and it will not throw any codes.

 

Are your injectors scaled right this time? because before they weren't.

 

If stalls after WOT finished and foot is off throttle then it's likely the diverter valve not opening

 

Let me be blunt with you: There aren't any good big name Evo pro-tuners in SoCal. They ALL SUCK. So stop wasting your money trying them. If want a good SoCal tuner try Scott Barbour. He tunes @ the Long Beach meets. Check out SoCal evo for the dates and time of the meets and then go there and he will fix your car.

Another tuner that I recommend is Razolab. He tunes in NorCal, but the trip is worth it IMO.