What is Lambda?

Hey Guys! please let me know if lambda a useful product for CNG cars.... How much does it cost ..... and from where i can get it installed in Delhi?



"ALL I WANT IS EVERYTHING"

Lambda a product...could you please eleborate more.

I know Lamba as Air fuel ratio, and it should be ideally near to 1. Some modern vehicles have lambda sensor installed. The Engine control module will sense the value of lambda and increases or decreases the fuelling to achieve Stoichometric ratio.

thanx rajesh for taking interest in my query. However, what i was looking for that does it also helps you in getting a good pick-up as u get on normal petrol running car.



"ALL I WANT IS EVERYTHING"

Not sure about pick up improvements but definely overall performance improves. Earlier it was calculated so it might have some errors. Now we get direct actual data from this sensor (it is called as oxygen sensor). It senses for rich or lean ratio and as per that input adjusts the fueling to achieve correct ratio.

I still could not find out...Is it the necessity or just a good advanced part to add with your CNG kit....I have a timing advancer installed in my car & i dont feel any pick-up problems as such.

"ALL I WANT IS EVERYTHING"

1. lambda is an electronic device fitted as an optional addition to the standard cng or lpg kit ( just like the timing advancer) .. once lambda is installed the gas system is also referred to as 'closed loop system'

2. in standard kits air-fuel mixture setings are done manually, whereas in the closed loop system this function is taken over by the lambda

3. all other things being in order, lambda does not aid pick-up

4. if you can visit your fitter once in 2 months for settings and your fitter is good at his job , lambda is best avoided

5. good quality lambda device should cost 3-4k over and above the standard kit costs including fitting charges

6. lambda can be installed by any good dealer who fits cng/lpg kits .. any make of lambda device can be fit on any brand of kit by any dealer even after fitment of the gas kit

7. no oxygen sensor or any other sensor is installed with the lambda .. the lambda is wired to the various sensors already existing in the car including the oxygen sensor

8. there are no confirmed reports that lambda helps performance .. it is merely a substitute for manual settings .. i have seen many cars perform much better on manual settings than on lambda .. so if your fitter is really good at settings , lambda is avoidable

Hi friends, this seems to be the right forum to adress one of my queries as well. I have purchased a Hyundai accent executive- CNG model. Per the company / dealer,  it carries an advanced lambda system. i wish to know if this would include a TAP as well cos i think may be its not there. While the pickup on CNG is reasonably good, with the AC on, it does feel a little sluggish.  The technicians / designates at the ASS also do not seem to know much on this.

 In case the TAP is'nt there, can i get one from the fitted from outside, will that help ?

lambda is absolutely independent of the TAP .. you are right .. having one does not necessarily mean you have the other too

if your car does not have TAP and you are loking for better pickup .. yes TAP would help

yes you can get the TAP instaled from any good fitter anywhere .. should cost 2-3 k only .. but make sure u find out a thorough professional who sounds absolutely confident abt the addl installation and is able to assure the anticipated benefit therefrom

there would be no addl paper/rto formalities for mere addition of TAP

Thanks a lot Vidhur. I think that addresses my queries quite well. I shall take care before choosing the person for the job in order to reap the actual benefits of this addittion.

The retrofitment quality (workmanship) & maintenance thereafter have always been key to good performance - as always pointed out by Vidhur.

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