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Discuss all things tuning in this section. News, products, problems and results.
I am trying to tune my 1st evo 8 with tephra v7
Car was tuned by another tuner and came to me as they are not happy with it
Car has no maf and running speed density
I opened the file and can see all the tables. The car has shit cold start and stalls if I don't hold the throttle at around 1500-2000 rpm
Once it's warm it's ok. I was able to raise the idle a bit to 900 and it's much better now
I am trying to tune the idle and cold start so I can continue with closed loop
I am using ecu flash to edit the maps and works
However with evo scan I can't seem to get the data I want to show
For example all fuel trims are stuck on 0
Can't see an o2 sensor ( stock narrowband)
Do I have to load special logger defs like for subarus??
I wish romraider logger would work on evo it's a lot better
Any other tips ?? I read merlyn s guide but it doesn't talk about logging nor about tephra
Thanks for the help
I use both open source/evo scan and ECUedit/Epifan although have only used ECUedit when doing speed density with great results.
I also tend to favor using ecuedit for data logging when I can anyway as I find it more stable and not dropping out or not reading certain parameters.
ECUedit can be found here http://www.epifansoft.com/
I bought the software. logging is much better
I am having a fuel cut on the car. seems to cut injectors
Here's a log and my file
i cant find any reason why its cutting
At a quick look at the log I would say boost cut.
I don't have the definition for this file so can't open your tune file. If you want to post up the definition as well I can have a look
here u go
add these to C:\Program Files (x86)\OpenECU\EcuFlash\rommetadata\mitsubishi\evo
heres another log of the same thing
seems like a load issue
boost is very low
I can't see any limits that could be causing it. Couple things I would try would be to disable your launch control and no lift to shift and other add ons in your tephra options. This will eliminate any of these causing issues.
Also log vehicle speed to ensure the ecu is seeing speed and not activating the stationary rev limit, maybe even try a run in a lower gear as well and see if you can.
i am losing hope
ordered a link ecu :)
this stock ecu is shit
Is your speed sensor working?
That's where I was starting to lean towards as well HS Engineering.
That is one way to fix the issue Rasheednash :)
I have pushed the stock ecu very far and with great results. Sometimes just take a bit of work and figuring out.
Hi Chris.Sorry, I missed your previous post somehow.
I have also had great results with the OEM Evo ECU.