I disabled EGCV....wtf? - 600RR.net
Troubleshooting Having trouble with your bike? Common know issues or trobuleshooting questions here.

 
LinkBack Thread Tools
post #1 of 22 (permalink) Old 07-16-2008, 12:11 PM Thread Starter
Pocketbike Racer
 
Join Date: May 2008
Location: Yay Area
Posts: 376
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
I disabled EGCV....wtf?

So, I might be going crazy, but I went to search again for threads about the EGCV, and found none of the ones I was looking at before I did it. So sorry if this has all be said somewhere else.

Anyways, I've got an '08, and I did the whole thing. I did unplug the servo motor (with FI light now) and instead of safety wiring or otherwise fixing the valve I just rotated the pulley/spring assembly so it hooks on a different tab and rests in the open position. Anyways, there's a lot more noises than before, it cold idles at more like 2300 rpm than the usual 2000, and now most concerning is if I get on it at manly rpms and shift, when I hit the next gear it lags as bad as when you miss into neutral and do the lean-forward thing while not going anywhere :rolleyes:--It's not one of those subjective "omg throttle response 11!11" things over something like an air filter or whatever, it is that bad--and seriously I looked to see if I accidentally hit neutral by reaction (even though I was going from 3rd to 4th).

So, did I miss that you need a retune after disabling the valve, or is having the servo motor unplugged confusing the hell out of the ECU, or is this some BS I shouldn't have done to the bike? It definitely doesn't like it, it doesn't feel or sound like my baby anymore and I'm worried about A/F ratios at the very least.

Dave Moss Forks - Ohlins shock

Bazzaz FI/AFM

Goodridge SS lines - Vesrah RJL's

Arrow headers w/ Devil can

Woodcraft frame sliders - Demented swingarm spools - Rushkie-patented FE and guages

Last edited by Rushkie; 07-16-2008 at 12:16 PM.
Rushkie is offline  
Sponsored Links
Advertisement
 
post #2 of 22 (permalink) Old 07-16-2008, 12:16 PM
Back in the Day
 
Moeman's Avatar
 
Join Date: Jul 2003
Location: Central Florida
Posts: 51,143
Images: 665
Thanks: 2,026
Thanked 2,544 Times in 2,156 Posts
Feedback Score: 148 reviews
Plug back the servo motor not only the FI light will go away the bike
will probably act normal give it a try at least and post back up the results



If it doesn't challange you it won't change you
Only two ways to live life. One is as though nothing is a miracle. The other is as though everything is a miracle.
Moeman is offline  
post #3 of 22 (permalink) Old 07-16-2008, 12:26 PM
Demented
Guest
 
Posts: n/a
With the servo unplugged and no servo eliminator on the bike, the ECU will put itself in limp mode, which is causing your problems. Do as Moe said and plug it back in.
 
post #4 of 22 (permalink) Old 07-16-2008, 01:18 PM Thread Starter
Pocketbike Racer
 
Join Date: May 2008
Location: Yay Area
Posts: 376
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Goddamn! Aside from roll-on lag, the bike still spanked my ass like a gov't whore this morning. That's what they call limp mode? Just stunning...

What do you guys do with the cables then, I wouldn't want them flopping around in the pulley box. Or can you disconnect them at the motor and be done with it?

I should have known not to disconnect the wires it took me 20 min to get all 3 of the damn tabs in at the same time to unplug the connector. I was ******* thinking in my head too, like damn they really don't want you to unplug this!

Dave Moss Forks - Ohlins shock

Bazzaz FI/AFM

Goodridge SS lines - Vesrah RJL's

Arrow headers w/ Devil can

Woodcraft frame sliders - Demented swingarm spools - Rushkie-patented FE and guages
Rushkie is offline  
post #5 of 22 (permalink) Old 07-16-2008, 01:20 PM
Demented
Guest
 
Posts: n/a
You can just disconnect the cables at the servo and leave the servo assembly in the bike. That's how mine is right now.
post #6 of 22 (permalink) Old 07-16-2008, 01:58 PM
Knightslugger
Guest
 
Posts: n/a
Contact DocC at CBR Riders dot com and he'll get you goin.
post #7 of 22 (permalink) Old 07-17-2008, 02:35 AM Thread Starter
Pocketbike Racer
 
Join Date: May 2008
Location: Yay Area
Posts: 376
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Got the servo hooked back up and removed it's cables. Bike runs great now, though I notice a lot more vibration and a new rattling sound here and there, but I'm just guessing that's from the valve left to be in the pipe. At least I hope it is, I can't be sure of anything since I haven't been able to hear **** since Sunday rockin the straight pipe for shits and now it's back to stock. I swear it sounds quiet as a lexus now...

Dave Moss Forks - Ohlins shock

Bazzaz FI/AFM

Goodridge SS lines - Vesrah RJL's

Arrow headers w/ Devil can

Woodcraft frame sliders - Demented swingarm spools - Rushkie-patented FE and guages

Last edited by Rushkie; 07-17-2008 at 02:37 AM.
Rushkie is offline  
post #8 of 22 (permalink) Old 07-17-2008, 12:14 PM Thread Starter
Pocketbike Racer
 
Join Date: May 2008
Location: Yay Area
Posts: 376
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Bike still limp

So I did the EGCV valve and stock can is back on, and I plugged in the EGCV servo motor so now the FI light is gone. Yet, the bike's now the bike really doesn't want to go past 11k.

Sorry I'm at work and can't search too hard. Does this mean limp mode is still on? Is there some way to reset it?

Thanks

Dave Moss Forks - Ohlins shock

Bazzaz FI/AFM

Goodridge SS lines - Vesrah RJL's

Arrow headers w/ Devil can

Woodcraft frame sliders - Demented swingarm spools - Rushkie-patented FE and guages
Rushkie is offline  
post #9 of 22 (permalink) Old 07-17-2008, 12:22 PM
Knightslugger
Guest
 
Posts: n/a
is the valve open, or is the valve closed?
post #10 of 22 (permalink) Old 07-17-2008, 12:41 PM Thread Starter
Pocketbike Racer
 
Join Date: May 2008
Location: Yay Area
Posts: 376
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
It's open, the bike runs like hell up to 11k and then just gives up.

Dave Moss Forks - Ohlins shock

Bazzaz FI/AFM

Goodridge SS lines - Vesrah RJL's

Arrow headers w/ Devil can

Woodcraft frame sliders - Demented swingarm spools - Rushkie-patented FE and guages
Rushkie is offline  
post #11 of 22 (permalink) Old 07-17-2008, 12:53 PM
Knightslugger
Guest
 
Posts: n/a
"runs like hell"

does that mean it runs well, or runs poorly?
post #12 of 22 (permalink) Old 07-17-2008, 01:04 PM Thread Starter
Pocketbike Racer
 
Join Date: May 2008
Location: Yay Area
Posts: 376
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Yeah, she runs fast as ever up to ~11k then stops is what I meant :icon_lol:. Only other thing I notice since messing with the valve period, is some more vibration (especially through the seat at idle).

Dave Moss Forks - Ohlins shock

Bazzaz FI/AFM

Goodridge SS lines - Vesrah RJL's

Arrow headers w/ Devil can

Woodcraft frame sliders - Demented swingarm spools - Rushkie-patented FE and guages
Rushkie is offline  
post #13 of 22 (permalink) Old 07-17-2008, 01:06 PM
Demented
Guest
 
Posts: n/a
Hose positive are you that the valve is stuck in the open position? If it's not safety wired in a fixed position or has something holding it in that place, it will rotate and block the exhausts gases which could be happening around 11k RPM for you.
post #14 of 22 (permalink) Old 07-17-2008, 01:10 PM Thread Starter
Pocketbike Racer
 
Join Date: May 2008
Location: Yay Area
Posts: 376
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Wouldn't the gas pressure keep it open itself if there's nothing trying to close the valve? What would cause it to close?

Dave Moss Forks - Ohlins shock

Bazzaz FI/AFM

Goodridge SS lines - Vesrah RJL's

Arrow headers w/ Devil can

Woodcraft frame sliders - Demented swingarm spools - Rushkie-patented FE and guages
Rushkie is offline  
post #15 of 22 (permalink) Old 07-17-2008, 01:12 PM
Demented
Guest
 
Posts: n/a
The exhaust gases would push the valve open or closed since it wants to spin freely, but it can always stop at the closed or partially closed position if you still have the spring attached trying to hold it open.
post #16 of 22 (permalink) Old 07-17-2008, 01:22 PM Thread Starter
Pocketbike Racer
 
Join Date: May 2008
Location: Yay Area
Posts: 376
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Hm I see what you're saying, I might have rushed things a bit

What I need to do is go back and hook it up again and make sure it's in teh right position for one, and then maybe epoxy it or wire it like everyone's saying, what do you wire it to? the little calibration tab or something?

So, while I get to working that out, if there's no warning light's on, everyone's sure that means the ECU's 100%?

Dave Moss Forks - Ohlins shock

Bazzaz FI/AFM

Goodridge SS lines - Vesrah RJL's

Arrow headers w/ Devil can

Woodcraft frame sliders - Demented swingarm spools - Rushkie-patented FE and guages
Rushkie is offline  
post #17 of 22 (permalink) Old 07-17-2008, 01:29 PM
Demented
Guest
 
Posts: n/a
WIth no FI light, the ECU will be running at 100%.

Just drill a hole or two in the valve cover and wire it to the cover so it can't rotate. I just went the cheap way and with my valve stuck open, hammered the valve cover over it holding it in place and making it impossible for it to rotate, then put the front cover back on.
post #18 of 22 (permalink) Old 07-28-2008, 02:41 PM Thread Starter
Pocketbike Racer
 
Join Date: May 2008
Location: Yay Area
Posts: 376
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Thanks guys, I tried moving the valve around some more while running the bike, and I think I kind of positioned it closed I rotated the whole spring/pully assembly another 90 degrees (still without actually fixing it with wire or anything) and it runs great now, seems my theory holds that the spring will keep the valve open without any other help (I watched it while blipping the throttle and whatever else). Anyhoo, it's great to have her back, it's actually kind of cool that I was down for a while--I forgot how effing fast she is

Dave Moss Forks - Ohlins shock

Bazzaz FI/AFM

Goodridge SS lines - Vesrah RJL's

Arrow headers w/ Devil can

Woodcraft frame sliders - Demented swingarm spools - Rushkie-patented FE and guages
Rushkie is offline  
post #19 of 22 (permalink) Old 05-28-2015, 12:13 PM
World Superbike Racer
 
biglen's Avatar
 
Join Date: Sep 2011
Location: pittsburgh
Posts: 2,450
Images: 5
Thanks: 145
Thanked 232 Times in 207 Posts
Feedback Score: 9 reviews
so if you disconnect your cables, the valve will spring to the "open" position?
seems to make the most sense for least amount of motor damage, if you remove it, suzuki's SET valve springs into the open position when you remove the cables, but i cannot find any confirmation on honda's valve

biglen is offline  
post #20 of 22 (permalink) Old 05-28-2015, 01:31 PM
AMA Supersport Racer
 
Join Date: Nov 2012
Posts: 973
Images: 30
Thanks: 311
Thanked 64 Times in 52 Posts
Feedback Score: 0 reviews
I ran with the egcv disconnected on my 09 once and didnt experience what op described... But I did feel noticeable torque losses only under...say 7k rpm, enough to bother me during city riding

2009 cbr 600rr
sameh90 is offline  
post #21 of 22 (permalink) Old 05-28-2015, 05:32 PM
BOTM Winner 07/16
 
rinonz's Avatar
 
Join Date: Jun 2012
Location: NZ
Posts: 880
Thanks: 3
Thanked 182 Times in 154 Posts
Feedback Score: 0 reviews
With the cable removed; the valve will not stay on the open position.

You need to safety wire it to the open position or risk something like this:
https://youtu.be/5au2HQdCLQo?t=370

Once the exhaust valve completely closed, the bike won't go past 11.5k RPM
rinonz is offline  
The Following 2 Users Say Thank You to rinonz For This Useful Post:
biglen (05-29-2015), sameh90 (05-28-2015)
post #22 of 22 (permalink) Old 05-29-2015, 01:44 PM
World Superbike Racer
 
biglen's Avatar
 
Join Date: Sep 2011
Location: pittsburgh
Posts: 2,450
Images: 5
Thanks: 145
Thanked 232 Times in 207 Posts
Feedback Score: 9 reviews
my valve's spring fell out, so i think that valve is acting like an autozone whistle tip, just spinning in there freely....

biglen is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 600RR.net forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome