Ful cut but why??

Reply Subscribe

Thread Tools

Search this Thread

Apr 4, 2012 | 02:03 AM

#46

burgers22

Evolved Member

Joined: Jan 2006

Posts: 953

Likes: 2

From: Oxfordshire

Have a look at the DIY COP set up people have been building. Pretty easy to do and look cool as well.

Apr 4, 2012 | 04:20 AM

#47

wizzo 8

Thread Starter

Evolved Member

iTrader: (35)

Joined: Mar 2005

Posts: 3,836

Likes: 14

From: Chicago suburbs

I already have a spoolinup cop setup.

Apr 6, 2012 | 07:02 PM

#48

wizzo 8

Thread Starter

Evolved Member

iTrader: (35)

Joined: Mar 2005

Posts: 3,836

Likes: 14

From: Chicago suburbs

Ok so I finally figured out what I thought was "fuel cut". The spark plugs helped for a couple pulls because I was running too rich after 7k rpm. Took me a while to figure it out but yea I leaned it out after 7k and all is fixed. Hopefully this helps out other tuners and self tuners.

Apr 7, 2012 | 04:37 AM

#49

Benja

Evolved Member

Joined: Sep 2006

Posts: 800

Likes: 0

From: Newcastle, Australia.

How rich were you running? Sub 10.5's?

Apr 7, 2012 | 05:48 AM

#50

wizzo 8

Thread Starter

Evolved Member

iTrader: (35)

Joined: Mar 2005

Posts: 3,836

Likes: 14

From: Chicago suburbs

Not even close which is why I never thought it could be that. It was mid 11s. This is with e90. Bumped it to about 12 and its all good now. So for spool up I have it at 12.5 and for the rest of the pull its 12. I think my lc1 may be reading a bit leaner than it really is though.

Apr 7, 2012 | 05:58 AM

#51

tscompusa

Former Sponsor

iTrader: (31)

Joined: Oct 2005

Posts: 10,299

Likes: 67

From: PA

mid 11's wont cause misfire on ethanol.. even 10 flat wont. ethanol's RBT is far lower then gasoline.

test your o2 sensor asap.. and proceed with caution.

Apr 7, 2012 | 06:01 AM

#52

tscompusa

Former Sponsor

iTrader: (31)

Joined: Oct 2005

Posts: 10,299

Likes: 67

From: PA

oops forgot to post how to test your sensor;

http://www.youtube.com/watch?v=1mb4VmDd0ao

Apr 7, 2012 | 06:27 AM

#53

wizzo 8

Thread Starter

Evolved Member

iTrader: (35)

Joined: Mar 2005

Posts: 3,836

Likes: 14

From: Chicago suburbs

Hmm. I understand what you are saying but ever since I adjusted fuel its been good. I actually have 2 wideband sensors. My lc1 for logging and a autometer with gauge. I think my autometer is more accurate and reads a Tad richer. Ill watch the how to when I get home and do the test. I'm just happy the problem is gone.

Apr 20, 2012 | 04:18 PM

#54

wizzo 8

Thread Starter

Evolved Member

iTrader: (35)

Joined: Mar 2005

Posts: 3,836

Likes: 14

From: Chicago suburbs

Quote:

Originally Posted by tscompusa

!

if you try to lift shift with NLTS activated the car will freak out inbetween shifts.

dont ask me how i know.

Quote:

Originally Posted by merlin.oz

I dont think you mentioned what coil setup you have, but what you are describing is fuel-cutting, not plug/coil problems. I think tsc is on money re NLTS.

Well I after messing with the fuel and spark plugs and thinking it was fixed it wasn't. It did help but not 100%. I disabled NLTS and after a couple weeks of no fuel cut well I can officially say its fixed. I enabled it and fuel cut. So you guys were right. So my next question is am I SOL for running NLTS? Is NLTS only for lower HP cars

That would really suck if I couldn't use this great feature.

Apr 20, 2012 | 10:13 PM

#55

C6C6CH3vo

Evolved Member

iTrader: (9)

Joined: Feb 2005

Posts: 4,223

Likes: 4

From: sc

If IDC reads 0, it is commanded to shut fuel. Where is your left foot while this is happening?

Apr 21, 2012 | 05:47 AM

#56

wizzo 8

Thread Starter

Evolved Member

iTrader: (35)

Joined: Mar 2005

Posts: 3,836

Likes: 14

From: Chicago suburbs

Quote:

Originally Posted by C6C6CH3vo

If IDC reads 0, it is commanded to shut fuel. Where is your left foot while this is happening?

Off the clutch. It is very possible that maybe since its getting close to redline that I may be covering the clutch at those rpms without me even noticing.

Apr 21, 2012 | 06:53 AM

#57

Evo8RLK

Newbie

iTrader: (1)

Joined: Aug 2010

Posts: 76

Likes: 0

From: Sioux Falls, South Dakota

Quote:

Originally Posted by wizzo 8

Well this was the problem.

for 3K. I couldnt believe it. I installed some iridium plugs and now it pulls to redline without any problems. I know what it feels like when the gap is too big and it breaks up up top but this was like I was hitting a wall. Im also not sure why this would cause my afrs to sky rocket when it happened. You would think it would go rich

. Well either way its fixed. Thanks for all the help Raptord, Tcomp, Merlin, Burgers, and of course 3K

Just in case you were still wondering, it would show lean because the oxygen sensor or wideband sensor is picking up all the oxygen that didn't get ignited with the fuel. Basically its bot exhaust just oxygen and fuel. Hope that made sense