CO Pot resistance values

Hi,

Can anyone tell me the resistance values of the CO pot? I have a mod I'd like to try out with my, ahem, slightly larger injectors....

Thanks

Jon

The numbers I have are 200 Ohms (min) to 10000 Ohms (max) over a rotation of 270 deg (3/4 turn)

Brilliant thanks.

Is more resistance more lean or vica versa?

Cheers

Jon

Brilliant thanks.
Is more resistance more lean or vica versa?
Cheers
Jon

To honest I can not remember as it has been a very long time since I had to adjust one.

Done some checking and came up with,
Clockwise increases CO
Anticlock decreases

Brilliant, thanks so much. Really useful!

Will update....

Thanks

Jon

Ok so tested CO pot and mines only gowing down to 340ohms. Have now removed the pot and replaced with 0 ohm plug with wires bridged.

Havent had a chance to put it on a gas analyzer but the smell is most definitely less rich and the running much more smoother on idle.

For those with larger injectors fighting to get through the MOT man this might be a cheap way of doing it.....

Will get some actual results asap.

The problem with a 0 ohm bridge is the Ecu will see this as a direct short & can put the system into default.
I can see what you are trying to do but I would try a 100 ohm as this a is just above a direct short limit, or buy a varable poteniometer with a wider range than the actual CO pot.

I'll do just that- what wattage?

Thanks

Jon

Try something like this
http://www.maplin.co.uk/miniature-poten ... 3#overview

Does this go down to 100ohms?

Description from Maplin's here:

The following values are available with a linear track: 1k, 4k7, 10k, 22k, 47k, 100k, 470k, 1M
The following values are available with a logarithmic track: 10k, 47k, 100k, 1M

Seems to start at 1000ohms.....

That was one of many from Maplins, RS have a huge range to pick from they even list the same style of pcb mounted type that are fitted to the CO pot, it's just a case of finding the right one.

Ok great- ill get looking.

Thanks for all your help!

Jon, ... the values shown on your post is the resistance across the whole track of the pot. All of them will go down to Zero or near Zero irrespective of track resistance.
Suggest you try the 10K linear Pot, order code JM71N, that is the closest to the one measured by RED21.

Thanks, will do and report back.

I feel some dodgy muso soldering coming on!!!!