Notices
MEGAsquirt A place to collectively sort out this megasquirt gizmo

idel is ruogh, plugs are black

Thread Tools
 
Search this Thread
 
Old Jan 7, 2008 | 03:30 PM
  #1  
cardriverx's Avatar
Thread Starter
Elite Member
iTrader: (12)
 
Joined: Jan 2007
Posts: 2,573
Total Cats: 12
From: Hermosa Beach, CA
Default idel is ruogh, plugs are black

THe plugs tell me im running very rich, and the idel is very rough, maybe I foued the plugs? Im using DIY autotunes PMP after start enrich charts, and I have 305cc injectors. What should I do to get it idleing smooth?
Old Jan 7, 2008 | 03:38 PM
  #2  
cjernigan's Avatar
Elite Member
iTrader: (13)
 
Joined: Oct 2006
Posts: 8,091
Total Cats: 7
From: Atlanta, GA
Default

Did you set the req fuel for your injectors? Why don't you have a wideband O2?
Old Jan 7, 2008 | 03:43 PM
  #3  
Saml01's Avatar
Elite Member
iTrader: (9)
 
Joined: Jul 2007
Posts: 5,710
Total Cats: 3
From: NYC
Default

well first of all did you reconfigure your REQ fuel?

edit: beaten like a red headed step child. Gotta refresh more.
Old Jan 7, 2008 | 03:44 PM
  #4  
cardriverx's Avatar
Thread Starter
Elite Member
iTrader: (12)
 
Joined: Jan 2007
Posts: 2,573
Total Cats: 12
From: Hermosa Beach, CA
Default

req fuel is set, 1600cc car, 305cc injector, 14.7 to one. I have a wideand and it says around 15 to one.. nd it wont idel well at all.
Old Jan 7, 2008 | 03:46 PM
  #5  
cjernigan's Avatar
Elite Member
iTrader: (13)
 
Joined: Oct 2006
Posts: 8,091
Total Cats: 7
From: Atlanta, GA
Default

You need to add fuel in your fuel map in the idle cells. Tune it so your wideband reads closer to 14:1.

Change your plugs.
Old Jan 7, 2008 | 03:53 PM
  #6  
Saml01's Avatar
Elite Member
iTrader: (9)
 
Joined: Jul 2007
Posts: 5,710
Total Cats: 3
From: NYC
Default

Originally Posted by cardriverx
req fuel is set, 1600cc car, 305cc injector, 14.7 to one. I have a wideand and it says around 15 to one.. nd it wont idel well at all.
If you are using the PNP map you should have used 13.1 for your AFR in REQ Fuel. Thats what DIYAutotune uses for their map.
Old Jan 7, 2008 | 03:57 PM
  #7  
Braineack's Avatar
Boost Czar
iTrader: (62)
 
Joined: May 2005
Posts: 80,552
Total Cats: 4,368
From: Chantilly, VA
Default

Originally Posted by Saml01
If you are using the PNP map you should have used 13.1 for your AFR in REQ Fuel. Thats what DIYAutotune uses for their map.

+1
Old Jan 7, 2008 | 05:08 PM
  #8  
cardriverx's Avatar
Thread Starter
Elite Member
iTrader: (12)
 
Joined: Jan 2007
Posts: 2,573
Total Cats: 12
From: Hermosa Beach, CA
Default

ok, I loaded in the whole DIY autotunes Megatunes settings, and set the req fuel like you said. It still runs like ****, barley idles, if at all. the plugs got black again quick, and smell of gas. The oil looks fine, everything looks fine. im at a loss of what to do..
Old Jan 7, 2008 | 05:32 PM
  #9  
Braineack's Avatar
Boost Czar
iTrader: (62)
 
Joined: May 2005
Posts: 80,552
Total Cats: 4,368
From: Chantilly, VA
Default

remove fuel from the ve table.
Old Jan 7, 2008 | 05:50 PM
  #10  
cardriverx's Avatar
Thread Starter
Elite Member
iTrader: (12)
 
Joined: Jan 2007
Posts: 2,573
Total Cats: 12
From: Hermosa Beach, CA
Default

well I drained the oil.. and when it was all in a bucket it def smelled of gas. I must be running so rich that it is fuel washing the cylinders.. ****. hell at this point I might only be ruinning on a cylinder... i dunno. Im totally lost.. and panicing.
Old Jan 7, 2008 | 06:33 PM
  #11  
cardriverx's Avatar
Thread Starter
Elite Member
iTrader: (12)
 
Joined: Jan 2007
Posts: 2,573
Total Cats: 12
From: Hermosa Beach, CA
Default

oh thank you god! I plugged the stock computer and AFM in and it runs like a charm.. oh man I was scared I blew the engine.. OK so its definitly something in MS.. what should I check?
Old Jan 7, 2008 | 06:45 PM
  #12  
UrbanSoot's Avatar
Elite Member
iTrader: (24)
 
Joined: Jun 2007
Posts: 4,667
Total Cats: 18
From: Woodland Hills, CA
Default

looks like you need to give it less fuel. try running tuning your req fuel until it idles smoothly and then retune your ve map. try starting with 11.5-12 in req fuel and go from there. change values by .3 in either direction and see what it likes better
Old Jan 7, 2008 | 09:28 PM
  #13  
hustler's Avatar
Tour de Franzia
iTrader: (6)
 
Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
Default

req fuel is 13.1 on the 9093 diy mspnp.
Old Jan 7, 2008 | 10:07 PM
  #14  
cjernigan's Avatar
Elite Member
iTrader: (13)
 
Joined: Oct 2006
Posts: 8,091
Total Cats: 7
From: Atlanta, GA
Default

You should be using a PCpro if you can't handle removing fuel from your fuel table. Then again, you would still be dealing with cylinder wash with the PC if Tom tuned it anyway.

Did you figure out how to remove fuel from your VE table yet?
Old Jan 7, 2008 | 10:21 PM
  #15  
cardriverx's Avatar
Thread Starter
Elite Member
iTrader: (12)
 
Joined: Jan 2007
Posts: 2,573
Total Cats: 12
From: Hermosa Beach, CA
Default

Originally Posted by cjernigan
You should be using a PCpro if you can't handle removing fuel from your fuel table. Then again, you would still be dealing with cylinder wash with the PC if Tom tuned it anyway.

Did you figure out how to remove fuel from your VE table yet?
yes I do...
For some reason it seems like takeing fuel from the points around idle dont make a diffrence.. maybe I have to take out more? I took about 7 to 10 away from DIY autotunes map...
Old Jan 7, 2008 | 10:27 PM
  #16  
cjernigan's Avatar
Elite Member
iTrader: (13)
 
Joined: Oct 2006
Posts: 8,091
Total Cats: 7
From: Atlanta, GA
Default

Your signature says you have 460cc injectors and your post said 305cc, which is it?

I find that 1 point of VE will change my A/Fs around .3 AFR on stock injectors, that amount of change will increase with the size of the injectors.
Old Jan 8, 2008 | 07:05 PM
  #17  
cardriverx's Avatar
Thread Starter
Elite Member
iTrader: (12)
 
Joined: Jan 2007
Posts: 2,573
Total Cats: 12
From: Hermosa Beach, CA
Default

I just got the 460cc injectors, imma put them on tommorow.

Would anyone be willing to share their settings for 460cc injectors? Atleast that should get me in the ballpark.
Old Jan 8, 2008 | 08:10 PM
  #18  
brgracer's Avatar
Senior Member
iTrader: (14)
 
Joined: Nov 2004
Posts: 1,275
Total Cats: 1
From: Ambler, PA
Default

If changing your fuel has not done much, I'd also check your timing with the MS installed since it's a new install to make sure that when MS thinks it's 10 BTDC, the engine markings say the same.
Old Jan 8, 2008 | 08:13 PM
  #19  
Braineack's Avatar
Boost Czar
iTrader: (62)
 
Joined: May 2005
Posts: 80,552
Total Cats: 4,368
From: Chantilly, VA
Default

i guess i could send you my last msq. 460cc 13psi and t3. should get you close.

its on my laptop....will post laterz.
Old Jan 8, 2008 | 08:15 PM
  #20  
paul's Avatar
Elite Member
iTrader: (21)
 
Joined: Jun 2006
Posts: 2,957
Total Cats: 2
From: Point Pleasant, NJ
Default

and are you burning the changes to the MS?



All times are GMT -4. The time now is 09:02 PM.