should soon be seeing fuel costs equivalent to about 80mpg!
I’m fitting a LPG conversion kit to my 20 year old Bluebird, and it’s a closed loop setup utilizing a lambda sensor to control the gas mixture. The
car has a carb so I need to weld in the new sensor, just not quite sure where it will work best, I suppose that it should be on the outside of the
curved down pipe as would the gas stream not be most concentrated there? But how far from the exhaust, does it matter?
should soon be seeing fuel costs equivalent to about 80mpg!
On my tintop its just a few inches down from the exhaust manifold on the downpipe before the catalytic converter. Exhaust gas is hotter the closer you are to the manifold isnt it.
Yeah but I've seen quite a variation of distances. Given that it’s not a performance car I'd expect it could be quite close, just not sure
if there is an optimum temperature for it to work?
[Edited on 9/10/08 by Mr Whippy]
The closer the better with an unheated lamda sensor.
Doesnt matter too much with a heated one.
David
hmm cheers, apparently - "The sensors only work effectively when heated to approximately 800°C"
Oh well so much for my worries of melting it! 
The sensor should also be mounted pointing somewhat downwards (i.e. the sensing end pointing down) rather than horizontal or upwards to prevent water getting trapped inside it.
quote:
Originally posted by MikeRJ
The sensor should also be mounted pointing somewhat downwards (i.e. the sensing end pointing down) rather than horizontal or upwards to prevent water getting trapped inside it.
quote:
Originally posted by Mr Whippy
[oh right, never thought of that but surely it would be quite dry normally seeing where it lives?
certainly would never have considered that, thanks