RomRaider Logo

RomRaider

Open Source ECU Tools
 FAQ •  Register •  Login 

RomRaider

Documentation

Community

Developers

It is currently Mon Dec 11, 2017 3:30 am

All times are UTC - 5 hours [ DST ]





Post new topic Reply to topic  [ 10 posts ] 
Author Message
 Post subject: only rev 4600 no lc bad afr
PostPosted: Fri Nov 03, 2017 1:58 am 
Online
Newbie

Joined: Tue May 30, 2017 11:09 pm
Posts: 14
hello good afternoon friends I'm starting in the ecu tune, and a friend brought me a subaru 2002 wrx usdm since he bought it has a big problem

the car is on the stock map and only has the tgv deleted, and everything else stock, time, boost, etc no cels i check all cell and only tgv delete full decat and headers

the problem is that the car lights up well but at the moment of doing WOT or just accelerating to 4600 there is fuelcut reading some parameters it throws me this afr

Any opinion since tomorrow disarm the engine to check injectors, coilpacks, fuelfilter, pump, if someone has had this problem please help me before disarming completely, in advance thank you very much friends


Attachments:
problems.png
problems.png [ 55.8 KiB | Viewed 160 times ]
Top
 Profile  
 
 Post subject: Re: only rev 4600 no lc bad afr
PostPosted: Fri Nov 03, 2017 2:07 am 
Offline
RomRaider Donator

Joined: Wed Jul 27, 2011 10:07 am
Posts: 124
Location: South Africa
Hi.

You shouldn't be logging rear 02 sensor, do you have a wideband connected? You need to log relevant parameters to see what first of all your Closed Loop fueling looks like, this before you start taking and checking hardware.

I suggest you go read up and see where to start in the Tuning FAQ..

_________________
_______________________
Wrb Adm Sti 06 - Gtx3076 rotate, self built, E50+25%meth, 360wkw\600nm.


Top
 Profile  
 
 Post subject: Re: only rev 4600 no lc bad afr
PostPosted: Fri Nov 03, 2017 8:56 am 
Offline
Senior Member

Joined: Thu Aug 03, 2006 10:40 am
Posts: 1901
the TGV delete is twofold:

1. physically remove butterfly and shaft

2a. mechanically connect tgv actuator with tgv sensor so the ecu "thinks" the tgv is still working
2b. edit the ecu rom to do the same

you MUST do either 2a or 2b.


Top
 Profile  
 
 Post subject: Re: only rev 4600 no lc bad afr
PostPosted: Tue Nov 07, 2017 3:33 am 
Online
Newbie

Joined: Tue May 30, 2017 11:09 pm
Posts: 14
ok friends i change many things on my car and nothing happens, same problem heres the list

inlet manifold and tgvs on it
another stock injectors
coilpacks
fuelfilter
sparkplugs
and full engine harness

i do a stock map reflash andstill no cell only haves a hard 4600 rev fuelcut to 2500

i think its a fuelpump or ecu problem , maybe on 2 days itry to change it those

this is my log
plsss helpme tnx 4 all


Attachments:
romraiderlog_20171105_181557.csv [28.57 KiB]
Downloaded 3 times
Top
 Profile  
 
 Post subject: Re: only rev 4600 no lc bad afr
PostPosted: Tue Nov 07, 2017 5:06 am 
Offline
Moderator
User avatar

Joined: Sat Jul 06, 2013 8:55 am
Posts: 2038
Location: NI
have you checked the cam/crank sensor? I've seen before cars that won't rev as they aren't getting the correct signal.

_________________
Good luck and may the logs be ever in your favour!


MY06 EDM STi Type UK Spec D
============================
Panel Filter/2.5" Decat/Prodrive Springs/Leather Seats


Top
 Profile  
 
 Post subject: Re: only rev 4600 no lc bad afr
PostPosted: Wed Nov 08, 2017 12:46 am 
Online
Newbie

Joined: Tue May 30, 2017 11:09 pm
Posts: 14
bludgod wrote:
have you checked the cam/crank sensor? I've seen before cars that won't rev as they aren't getting the correct signal.


im only change the crank sensor , good point im gonna change the cam , and i post my results


Top
 Profile  
 
 Post subject: Re: only rev 4600 no lc bad afr
PostPosted: Wed Nov 08, 2017 4:48 am 
Offline
Newbie

Joined: Sat Oct 29, 2016 5:40 pm
Posts: 61
I have a VERY LONG SHOT.. is your speedo working?


Top
 Profile  
 
 Post subject: Re: only rev 4600 no lc bad afr
PostPosted: Wed Nov 08, 2017 5:11 am 
Offline
Moderator
User avatar

Joined: Sat Jul 06, 2013 8:55 am
Posts: 2038
Location: NI
roziV wrote:
I have a VERY LONG SHOT.. is your speedo working?

not so long of a shot, this would definitely cause this type of result silly me assumed it was but you could well be right!

_________________
Good luck and may the logs be ever in your favour!


MY06 EDM STi Type UK Spec D
============================
Panel Filter/2.5" Decat/Prodrive Springs/Leather Seats


Top
 Profile  
 
 Post subject: Re: only rev 4600 no lc bad afr
PostPosted: Sat Nov 11, 2017 4:56 am 
Online
Newbie

Joined: Tue May 30, 2017 11:09 pm
Posts: 14
hello bros

i change the cam sensor
fuel pressure regulator
an the ECU to

nothing happens
still revs on the way and parking to
but its not a normal rev suddenly drops so hard from 4600 to 2500

the last thing its the fuel pump it is really my problem? , im so tired
trying to change tomorrow i hope on that

i have a video the check engine comes after i disconect the pcv and forgot reset ecu
but still happens with or whithout the cel

https://youtu.be/ZRsZQXto8PI


Top
 Profile  
 
 Post subject: Re: only rev 4600 no lc bad afr
PostPosted: Sat Nov 18, 2017 7:18 am 
Online
Newbie

Joined: Tue May 30, 2017 11:09 pm
Posts: 14
i change the fuel pump , timing belt and nothing happens, it is a mechanical problem maybe bad valves or heads or just cam damage
or electrical problems ,, omg im so frustrate


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: Bing [Bot] and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Style based on FI Subsilver by phpBBservice.nl