Posted: Wed Oct 06, 2004 9:21 pm
Bloody thing double posted! 
(That's the light blue wire, BTW
)Page 2 of 2
Posted: Thu Oct 07, 2004 12:04 am
Well strangely enough it connects to the O2 sensor input wire!
(That's the light blue wire, BTW )
(That's the light blue wire, BTW
)Posted: Thu Oct 07, 2004 8:55 am
Thanks for that 
But is it necessary for a conversion where all a bloke wants to do is get the tuning close to perfect and the timing to suit, or is this one more for the enthusiast?
But is it necessary for a conversion where all a bloke wants to do is get the tuning close to perfect and the timing to suit, or is this one more for the enthusiast?
Posted: Thu Oct 07, 2004 9:07 am
up2nogood wrote:Thanks for that
But is it necessary for a conversion where all a bloke wants to do is get the tuning close to perfect and the timing to suit, or is this one more for the enthusiast?
A wide band O2 sensor isn't necessary, a standard one will work fine
as far as I have read. VN/VR/VT commodore
Tom
Posted: Thu Oct 07, 2004 11:51 pm
No, wideband isn't necessary to get a decent tune, in fact if you're used to carbs then you can go without and tune it by feel / guesswork as per usual 
Don't know what it is in $, but I paid £10 for a 3-wire lambda sensor off a crashed Vitara. Doesn't matter what you use - 1, 3 or 4 wire, but the 3-wire is easiest to connect and being heated it makes tuning posible over a wider range.
To tune your mixture at high loads / RPM using a normal lambda, just take the value that MSTWeak suggests, for example 50, then to get a mixture of 12.5:1 (rich for high load) just do 50 * (14.7 / 12.5) = 59. This is because the lambda sensor only tells you when the mixture is at 14.7:1, see?
Don't know what it is in $, but I paid £10 for a 3-wire lambda sensor off a crashed Vitara. Doesn't matter what you use - 1, 3 or 4 wire, but the 3-wire is easiest to connect and being heated it makes tuning posible over a wider range.
To tune your mixture at high loads / RPM using a normal lambda, just take the value that MSTWeak suggests, for example 50, then to get a mixture of 12.5:1 (rich for high load) just do 50 * (14.7 / 12.5) = 59. This is because the lambda sensor only tells you when the mixture is at 14.7:1, see?