Hi guys

i'm new to 4g63 and other jdm and need your help. I have an evo4 jdm and i have swapped evo8 ecu in. The car used to run ok but after removing egr and wiring some gauges for logging im experiencing some bad issues. first car wont idle normally but i have installed tephramodv7 enabled rear o2 sim and let it to run some time, recorded ltft of 3.3% which seems to be in normal range. now when it idles its keeping afrs(aem uego logged through ecu) close to 15.6-16 and the same time stft is abou 5-6%. i dont like how it idles but its better now after thphramod install.

the second issue is even worse: sometimes when i push gas pedal on low gear and rpm it wont rev for a bit, fills like its cutting fueling or ignition and later it suddenly revs and operates normal.

my rom is 96530706, i also have aem boost gauge wierd to port 75 for logging. all this issues arise after i have connected boost ad afr for logging and not sure what to check now.

I'm new to this motor and need some help. below you will find some logs which I have logged on both tephra and stock roms(not sure which one is what).


http://datazap.me/u/taron/evo-bad-idle1?log=0&data=6-17

http://datazap.me/u/taron/badidle123?log=0&data=6-17

hope you are familiar with datazap))
rom file is attached

thanks in advance

rom file

https://www.evolutionm.net/forums/at...-tephramod.bin

 

are you sure you're not introducing an air leak with the recent EGR disassemble?