Please login or register.

Login with username, password and session length
Advanced search  

Author Topic: Cover the Lambdas  (Read 762 times)

0 Members and 1 Guest are viewing this topic.

Highjagger

  • 2.5K CVO Member
  • **
  • Offline Offline
  • Posts: 2523
  • tradition`s not worship ash but pass on the fire

    • CVO1: FXSE Breakout Pro Street 2016 ,- and 2011 Crossbones FLSTSB ,- and 2016 LowRider s FXDLs
Cover the Lambdas
« on: June 08, 2009, 09:47:44 AM »

What would happen if i do cover the lambdas so that they cannot messure the CO2 in the emission .
Would they " tell " the ECM to let the EFI throw in more fuel ?
Would this work as a kind of fat AFR mix ?
How fat could the ECM let the EFI throw fuel in ?
Is there a maximium defined ?
Or would the engine run so fat that it would not be driveable anymore ?
Logged
Success is to stand up one more than to fall down

ragrep

  • Full CVO Member
  • ***
  • Offline Offline
  • Posts: 144
  • 2009 FLTRSE3

    • CVO1: 2009 FLTRSE3
Re: Cover the Lambdas
« Reply #1 on: June 10, 2009, 07:42:54 AM »

Highjagger, What kind of tuner do you have?
Logged
2009 FLTRSE3
2" Fullsac Baffles
PowerCommander PC5
Progressive 440HD shocks
KW 8" windshield

2006 TMC Springer
SE 103"B - HQ39 Cams
SE Heavy Breather

2006 Custom Bobber Hardtail
80" Super Stock Evo
SS heads, SS 561 cam, Super G carb, TD aircleaner
DynaTek DF Ignition

2008 BMW R1200GSA

2007 Suzuki DR650

Highjagger

  • 2.5K CVO Member
  • **
  • Offline Offline
  • Posts: 2523
  • tradition`s not worship ash but pass on the fire

    • CVO1: FXSE Breakout Pro Street 2016 ,- and 2011 Crossbones FLSTSB ,- and 2016 LowRider s FXDLs
Re: Cover the Lambdas
« Reply #2 on: June 10, 2009, 08:20:23 AM »

No other than stock ECM , that`s why i am thinking about tricking out the system .
( Just a idea )
Logged
Success is to stand up one more than to fall down

ragrep

  • Full CVO Member
  • ***
  • Offline Offline
  • Posts: 144
  • 2009 FLTRSE3

    • CVO1: 2009 FLTRSE3
Re: Cover the Lambdas
« Reply #3 on: June 11, 2009, 09:59:25 AM »

Why not add a PC5? It eliminates them all together. You can still leave them screwed into in the pipes, and hide the connector ends- this makes them appear functional. Then when you have to go get your emissions tested, you simply unplug the PC- reconnect the 02 sensors and  you are back to stock.
Logged
2009 FLTRSE3
2" Fullsac Baffles
PowerCommander PC5
Progressive 440HD shocks
KW 8" windshield

2006 TMC Springer
SE 103"B - HQ39 Cams
SE Heavy Breather

2006 Custom Bobber Hardtail
80" Super Stock Evo
SS heads, SS 561 cam, Super G carb, TD aircleaner
DynaTek DF Ignition

2008 BMW R1200GSA

2007 Suzuki DR650

Ed Ramberger - One_Screamin_Eagle

  • Senior CVO Member
  • ****
  • Offline Offline
  • Posts: 306

    • CVO1: 2000 FLTRSEI
Re: Cover the Lambdas
« Reply #4 on: June 13, 2009, 01:38:01 AM »

What would happen if i do cover the lambdas so that they cannot messure the CO2 in the emission .
Would they " tell " the ECM to let the EFI throw in more fuel ?
Would this work as a kind of fat AFR mix ?
How fat could the ECM let the EFI throw fuel in ?
Is there a maximium defined ?
Or would the engine run so fat that it would not be driveable anymore ?

The sensors measure oxygen in the exhaust - not CO2.  By covering them or whatever you think you are going to do to isolate them from the exhaust all you will do is cause fault codes and make the system run in open loop. THe fault codes will tell you that the sensors are locked lean. This is not a good plan.
Logged
FLTRSEI -Delphi Conversion, 103", 251 cams, Heavy Breather & a couple other little tweaks

grc

  • 10K CVO Member
  • ****
  • Offline Offline
  • Posts: 14216
  • AKA Grouchy Old Fart
    • IN


    • CVO1: 2005 SEEG2
Re: Cover the Lambdas
« Reply #5 on: June 13, 2009, 10:57:24 PM »

The sensors measure oxygen in the exhaust - not CO2.  By covering them or whatever you think you are going to do to isolate them from the exhaust all you will do is cause fault codes and make the system run in open loop. THe fault codes will tell you that the sensors are locked lean. This is not a good plan.

Exactly.  The only good way I know of to accomplish what he wants is through the use of a signal modifier like the Nightrider IED/XIED device that will fool the ECM into running a richer mixture in closed loop mode.  He could also install a SSERT or MasterTune and adjust the offset or bias to make it run richer in closed loop, but I think he is looking for a simple way without the tuning device.  Unfortunately, last time I looked the Nightrider folks still hadn't released a version of their device for the 2009 models.

Jerry
Logged
Jerry - 2005 Cherry SEEG  -  Member # 1155

H-D and me  -  a classic love / hate relationship.  Current score:  love 40, hate 50, bewildered 10.

Highjagger

  • 2.5K CVO Member
  • **
  • Offline Offline
  • Posts: 2523
  • tradition`s not worship ash but pass on the fire

    • CVO1: FXSE Breakout Pro Street 2016 ,- and 2011 Crossbones FLSTSB ,- and 2016 LowRider s FXDLs
Re: Cover the Lambdas
« Reply #6 on: June 14, 2009, 01:56:28 PM »

I gues that there is no " cheap and easy " solution , would have been a wonder anyway , HiHi .
Logged
Success is to stand up one more than to fall down
 

Page created in 0.129 seconds with 21 queries.