car breaks up around 6800 rpm - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community

car breaks up around 6800 rpm

Thread Tools Search this Thread
Old Dec 21, 2017, 09:35 PM   #1
Evolving Member
Thread Starter
Join Date: Jan 2015
Location: Dakota Oil Field
Posts: 111
Thanked 3 Times in 3 Posts

Drives: Evos

car breaks up around 6800 rpm

car is only running 12 psi its on an sd tune

changed map sensor
got rid of maf sensor
changed cam sensor
changed injectors
changed coil
Attached Files
File Type: csv EvoScanDataLog_2017.12.21_15.27.52.csv (89.9 KB, 0 views)

Last edited by Dakota Evo; Dec 21, 2017 at 09:43 PM.
Reply With Quote
Old Dec 27, 2017, 01:36 PM   #2
Evolving Member
iTrader: (2)
Project_Broke's Avatar
Join Date: Jul 2014
Location: Indianapolis
Posts: 181
Thanked 3 Times in 3 Posts

Drives: EVO IX

Who tuned it on SD?

Also, need to have a wideband logged.
Reply With Quote
Old Jan 3, 2018, 05:23 AM   #3
400s's Avatar
Join Date: Mar 2014
Location: C
Posts: 43
Thanks: 0
Thanked 3 Times in 3 Posts

Drives: Evo IX MR

Not much to look at from the log but...

Load to KPA is off...

You seem to be running pig rich especially on the high rpms... (injector duty vs boost comparison)

Could be your MAF scaling is off... could be you have not tuned your afrs right... could be anything..

post a screen shot of your 3D VE table, Maf Scaling & Comp, Kpa to Load, Volts to KPA, High Oct fuel Map, Knock sensor filtering tables, together with a log that has afrs....
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Knock sensor ohms reading Taylor44t Evo Electrical / Audio / Security 6 Aug 13, 2017 01:00 AM
Symptoms of a bad map sensor? MrEvo9Mong Evo General 11 Jan 13, 2017 02:33 PM
CEL code: P0134 BluEvo62 Evo General 5 Dec 22, 2016 11:52 AM
2010 ralliart Jdizzo33 09+ Lancer Ralliart General 3 Dec 2, 2016 01:23 AM
Knock sensor ohms reading Taylor44t Evo General 1 Mar 19, 2016 02:06 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -7. The time now is 08:56 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: