lambda

[bbb7]

what is lambda????
what does lambda tells???
pls help..........
tq

 

[rollakid]

lambda sensor is the o2 sensor right? basically a/f ratio..

or you mean the lambda driver from FMP's abarlest?

 

[ping5828]

lambda also known as O2(oxygen) sensor.
It senses the amount of oxygen in the exhaust gases and send signal to ECU for proper air fuel mixture.

 

[bbb7]

if lambda is O2 sensor, why dyno result show the lambda value 0.7???
what does this 0.7 tells????

 

[bbb7]

so sad, no reply

 

[vantageX]

Lambda sensor: exhaust gas oxygen sensor, O2 sensor, lambda probe and so on...

A lambda sensor is attached to the exhaust manifold of an engine and as said above senses the amount of oxygen in the exhaust gases and sends this information to the ECU to determine if the engine is running at the correct stoichiometric point (14.7:1 = air:fuel).

I'm not really sure what your dyno is showing you with a lambda value of 0.7 but I'm guessing its the voltage that the lambda sensor is putting out. Normally a voltage of 0.45V shows a good running engine whereas 0.7 would mean your engine's running rich. Lower than 0.45 would mean lean naturally.

I'm sure someone will step up to correct me if I'm wrong. :)

 

[bob6900]

erm.... me oso blur... dunno wuts lambda..
any other sifu wanna give a try?

 

[Dino@Casper]

Lambda sensor is the same as O2 sensor.. it just sense the A/F ratio to see if u are running rich or lean.. and adjust accordingly... Normally in a normal ECU.. which is a close loop system.. the sensor is constantly giving feedback to the ecu to tell how much fuel is being actually burn and how much petrol is actually wasted ... from there the ecu would change the amount of fuel injected into the engine if there is too much or too little...

But for an open loop system like a car with a piggyback.. normally the lamda in the car doesn't really play much a part.. maybe for cold starting n stuff.. but during high reving.. the sensor doesn't send any feedback back to the ECU this is because we override everything manually at specific loading