Lambda Sensor removal

  • Thread starter Deleted member 6158
  • Start date

Deleted member 6158

Guest
Hi, can anyone tell me if it a wise move to take off the Lambda sensor using a kit, also which kit is best? I.E blanking plug and connector. I still have Cat fitted with TORs and standard filter. however the plan if to replace filter with three K+Ns and remove cat ,then fit Power commander 5, but not at the moment. Advice welcome.
 
Unless you load a tune with tuneecu or tuneboy that tells the ecu not to use the O2 sensor, you have to leave it connected. When you install the pcv you will want to modify the tune in the ecu to open the secondaries and after you install the O2 bypass which comes with the pcv onto the ecu side of the O2 connector, you can replace the sensor with a bung if you plan to ever use it again, or leave it.
 
Unless you load a tune with tuneecu or tuneboy that tells the ecu not to use the O2 sensor, you have to leave it connected. When you install the pcv you will want to modify the tune in the ecu to open the secondaries and after you install the O2 bypass which comes with the pcv onto the ecu side of the O2 connector, you can replace the sensor with a bung if you plan to ever use it again, or leave it.


Thanks for that, so get the PCV first as everything should be with it re sensor.
 
Thanks for that, so get the PCV first as everything should be with it re sensor.
The stock lambda sensor can't be operative with a pcv installed. They should supply a component which they call "O2 controller" which takes the place of the connector coming from the stock O2 sensor.

Unless you want to install a better tune for your current setup using tuneecu, there's no point in doing anything with the lambda sensor. Are you getting autotune with the pcv? I'm not sure if the wide band sensor that comes with autotune goes into the same hole as the stock sensor. Auto tune or dyno tune, remember that you need to change the tune in the ecu before you install the pcv.
 
The stock lambda sensor can't be operative with a pcv installed. They should supply a component which they call "O2 controller" which takes the place of the connector coming from the stock O2 sensor.

Unless you want to install a better tune for your current setup using tuneecu, there's no point in doing anything with the lambda sensor. Are you getting autotune with the pcv? I'm not sure if the wide band sensor that comes with autotune goes into the same hole as the stock sensor. Auto tune or dyno tune, remember that you need to change the tune in the ecu before you install the pcv.


Thanks for that, I use a local Dyno rolling road, who fits PCV all the time, so I will be trusting him?
 
Thanks for that, I use a local Dyno rolling road, who fits PCV all the time, so I will be trusting him?
Do you trust him? Dynojet has a program called Tuning Link which automatically tunes the Power Commander on the dyno. I've had two tuners tell me it doesn't work. They tune manually by holding the throttle position constant and varying the rpms with the dyno, ie., varying the load. This fills in the throttle position - rpm trim table in the pcv. If he uses tuning link, maybe you should find someone else.

Where are you located?
 
Hi, can anyone tell me if it a wise move to take off the Lambda sensor using a kit, also which kit is best? I.E blanking plug and connector. I still have Cat fitted with TORs and standard filter. however the plan if to replace filter with three K+Ns and remove cat ,then fit Power commander 5, but not at the moment. Advice welcome.


Torque loss ALERT!

You are going to lose 27 ft lbs of torque when you switch to a free flowing Intake...@Claviger had the dyno numbers for a RAMAIR on the stock bike and it lost the 27 ftlbs...I did the RAMAIR on a stock Classic and it neutered the bike and made it rev alot faster......I do not know anything about tuning btut when you pull that stock airbox-the beast will not produce massive torque at LOW RPMS. Some things are left untouched and I have regrets I pulled my stock air box off as it changed my bike from a R3 to a FJR 1300...Fast revving lower torque...But then again I am running the base map 20215 until I get my Crat delete and TORS on with a 20228 map.

I still wonder if a hi flow intake bike can produce big torque at low rpms.....eg...2300.

@dougl at what RPM are you producing the most torque?

BTW...I am running an AFR+ which there seems to be some controversy whether it over rules the fuel maps in the ECU as it uses its own lambda and the ECUs lambda plug is sealed with a Null Cap Dobeck...

PS....Does anyone know the diff between a 20228 and 20050 map?

Cheers....Greg
 
Do you trust him? Dynojet has a program called Tuning Link which automatically tunes the Power Commander on the dyno. I've had two tuners tell me it doesn't work. They tune manually by holding the throttle position constant and varying the rpms with the dyno, ie., varying the load. This fills in the throttle position - rpm trim table in the pcv. If he uses tuning link, maybe you should find someone else.

Where are you located?


Im in the UK. and yep the dyno man is good, just specialises in racing bikes.
 
Torque loss ALERT!

You are going to lose 27 ft lbs of torque when you switch to a free flowing Intake...@Claviger had the dyno numbers for a RAMAIR on the stock bike and it lost the 27 ftlbs...I did the RAMAIR on a stock Classic and it neutered the bike and made it rev alot faster......I do not know anything about tuning btut when you pull that stock airbox-the beast will not produce massive torque at LOW RPMS. Some things are left untouched and I have regrets I pulled my stock air box off as it changed my bike from a R3 to a FJR 1300...Fast revving lower torque...But then again I am running the base map 20215 until I get my Crat delete and TORS on with a 20228 map.

I still wonder if a hi flow intake bike can produce big torque at low rpms.....eg...2300.

@dougl at what RPM are you producing the most torque?

BTW...I am running an AFR+ which there seems to be some controversy whether it over rules the fuel maps in the ECU as it uses its own lambda and the ECUs lambda plug is sealed with a Null Cap Dobeck...

PS....Does anyone know the diff between a 20228 and 20050 map?

Cheers....Greg
You have to have it tuned to get max torque with triple filters or Ramair. Maximum torque for a stock rocket is 2500-3000 rpm. Maximum torque on my 2007 R3C with triple filters and full Jardine exhaust is about 162 ft lbs 3600 rpm. The secondary throttle plates are removed. It was dyno tuned with a PCIII. See below. The blue line is for the 20226 (TORs with cat bypass) tune which I put in before adding the PCIII. Note that the peak torque is 10 ft lbs less.

The AFR+ does the same thing as a Power Commander. It increases or decreases the voltage pulse from the ECU to the injectors. This adds or subtracts fuel. It doesn't matter whether it does this based on what a dyno tuner inputs to the Dobeck or Power Commander or based on a signal from a wide band O2 sensor to the Dobeck or Power Commander. It's not doing anything to the ECU itself.

The 20228 tune was for the production silencers and a cat box without catalyst in it. The 20050 tune was the original base tune for production silencers with a cat box with catalyst in it.

Dyno071415_low.jpg
 
Back
Top