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[Highjagger]

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 ?

[ragrep]

Highjagger, What kind of tuner do you have?

[Highjagger]

No other than stock ECM , that`s why i am thinking about tricking out the system .
( Just a idea )

[ragrep]

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.

[Ed Ramberger - One_Screamin_Eagle]

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.

[grc]

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

[Highjagger]

I gues that there is no " cheap and easy " solution , would have been a wonder anyway , HiHi .