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View Full Version : not going to lie, ive got wideband and dont no how to use it!!


jamie_clioGTT
03-10-2011, 19:36
brought an aem afr off scoff and not too sure what readings i should be aiming for.. going to start messing with my mixture screw when i get one in and was wondering what numbers i need to be aiming for.. i.e at tickover and on boost. read the instructions but they might aswell be in spanish :sad2:

im guessing when the gauge is in the green.. i.e 11's and 12's thats good?

any help greatly appreciated. :)
Markey Mark (BD)
03-10-2011, 20:11
Ilde should be around the 14.5 or where it feels ok

Off boost driving around 14.5 again

On boost you want to see around 12.1, no higher then 12.5
r5_scotty
03-10-2011, 20:22
this is great as im learning this to. now my car at idle is 10.5 and on boost is 11.2 so what does this mean?:confused:
Markey Mark (BD)
03-10-2011, 20:26
this is great as im learning this to. now my car at idle is 10.5 and on boost is 11.2 so what does this mean?:confused:

Thats running rich mate, do you know what carb spec is at all?
Alastair
03-10-2011, 20:27
http://www.rtoc.org/boards/search.php?searchid=95160

The search function is your friend...:)
TNT ANDY
03-10-2011, 20:28
Way to rich @ idle - should be about 14.7 parts Air to 1 part fuel (14.7 : 1) and slightly rich on boost, should be about 12 parts air to 1 part fuel (12:1)
r5_scotty
03-10-2011, 20:39
great and i thought it was running sweet! i have no idea on what has been done to the carb?im still learning. my first time really owning a 5. and now i have a 9 to deal with to lol

both would apear to need carbs and setting up! thinking i need some knowledge and help lol:confused:
r5_scotty
03-10-2011, 20:43
dam the newbies a! :D
jamie_clioGTT
03-10-2011, 20:43
thanks alot! but mark what do you mean by feels ok? as to be honest it feels fine in the 12's.

thanks again. true bunch of stars. :agree:
Markey Mark (BD)
03-10-2011, 20:50
thanks alot! but mark what do you mean by feels ok? as to be honest it feels fine in the 12's.

thanks again. true bunch of stars. :agree:

What i meant was sometimes some cars (not all) seem to run alittle better slight rich on idle. One was my old campus, i set it to 14.5 but didn't feel quite right never idle smooth, soon as it was set to around 13.5 it idled lovely.
Ideally you want to aim for 14.5 but if its slightly off that it shouldn't be too much oif a problem.
jamie_clioGTT
03-10-2011, 21:03
ledgend. thankyou for all the info. will have a play tommorow.

one last thing.. with it set right, do you notice much diffrence when driving?
djinuk
03-10-2011, 21:03
jamie.. If you like your welcome to come down at the weekend and i can give you a crash course in it all.. Will be working on skids clio aswell.
jamie_clioGTT
03-10-2011, 21:11
thanks alot pal. i mite pop across. cheers.
Fordy
03-10-2011, 21:39
firstly strip the carb and measure everything inc the venturi size, dont trust what is writen on anything use drill bits and verniers to measure

you may find a nasty group a carb and 150main jet lol
djinuk
03-10-2011, 21:54
if it helps there a place near me that sells the full set of drill bits that work spot on for measuring/drilling

http://www.twwholesale.co.uk/

http://www.twwholesale.co.uk/product.php/section//sn/F2990

Also the place is ran by a fellow rtoc member!
gtmatt
03-10-2011, 22:15
great just what i wanted know as well happy days :)
SamBam
04-10-2011, 10:03
Take a look here:
http://www.rtoc.org/boards/showthread.php?t=4761
Matt Cole
04-10-2011, 13:10
What i meant was sometimes some cars (not all) seem to run alittle better slight rich on idle. One was my old campus, i set it to 14.5 but didn't feel quite right never idle smooth, soon as it was set to around 13.5 it idled lovely.
Ideally you want to aim for 14.5 but if its slightly off that it shouldn't be too much oif a problem.

Ah but remember, your car still needs to pass the MOT. The c/o needs to be within the limit which may mean it doesnt idle smooth if the carb has been messed around with.
Markey Mark (BD)
04-10-2011, 21:21
Ah but remember, your car still needs to pass the MOT. The c/o needs to be within the limit which may mean it doesnt idle smooth if the carb has been messed around with.

Totally agree mate, i wouldn't expect someone to put car through MOT with high emission's, i got to say with my old campus set to around the 13.5 mark it still went through