co Adjustment

Post Wed Jul 20, 2016 1:04 pm

Has anyone come across special tool 13 4 010 or 020, or know where I can get / make one.

https://www.bmwtechinfo.com/repair/main/561en/index.htm

section 13-58, co idle adjustment

Post Wed Jul 20, 2016 1:18 pm

Adjusting CO pot. or bypass doesn't require any special tools, other than a gas analyser, in spite of what that link says, BUT it should never need adjusting, and can only be set to the correct position on an engine that is in perfect condition and adjustment, which presumably yours isn't, otherwise the CO wouldn't need adjusting.
If the CO is incorrect, find out why, don't make an adjustment to compensate.

Post Wed Jul 20, 2016 4:42 pm

Thanks for that... but I need it adjusted as it has been adjusted wrongly before I got it. As per the link it requires the special tool and a gas analyser , I have the analyser, but not the tool. If the tool is not required, why does it have a reference to the tool in the link?

Post Wed Jul 20, 2016 4:46 pm

Post Wed Jul 20, 2016 6:14 pm

anyone got one / seen one / know how it works ,does it just short out all three pins?

Post Wed Jul 20, 2016 6:43 pm

Rustbuyer wrote:Has anyone come across special tool 13 4 010 or 020, or know where I can get / make one.

https://www.bmwtechinfo.com/repair/main/561en/index.htm

section 13-58, co idle adjustment

can't help with your problem, sorry,

but thaks for the link, very helpful.

Post Wed Jul 20, 2016 8:30 pm

Found it, just short all three pins together, then set base idle.
http://forum.roadfly.com/threads/148387 ... -Procedure

Post Thu Jul 21, 2016 12:37 pm

Rustbuyer wrote:Found it, just short all three pins together, then set base idle.
http://forum.roadfly.com/threads/148387 ... -Procedure

That is for an M3.

And is for the idle speed, not the CO.

Ben

Post Thu Jul 21, 2016 7:16 pm

Adjusting engine idle speed / co level.....M20 2.5liter engine, thats what is says section 13 -58 see above Ben.
It works , I have done it.

Post Thu Jul 21, 2016 11:21 pm

Rustbuyer wrote:Adjusting engine idle speed / co level.....M20 2.5liter engine, thats what is says section 13 -58 see above Ben.
It works , I have done it.

The title and all your posts have asked about CO adjustment.

You then posted a link to idle speed adjustment (on an M3).

I was just pointing out what seemed to be indiscrepencies.

Now that you have said what engine you have, perhaps you could try and make it clear what the problem is and what you are trying to achieve. Then the zone gurus may be able to help.

Ben

Post Sat Jul 23, 2016 2:11 am

Thanks, but I don't have a problem any more.
As per co/ idle adjust. section 13-58, above. According to the above , the process for setting the co, is preceded by checking the base idle.
Set base idle by jumping the 3 pins on the TPS and adjusting the brass screw. This sets the base idle on the M20 2.5l engine.
I can then set the co adjustment , using the ega, knowing that the base idle is correct. M3 part was only highlighting the 3 pin jumper on the TPS, which applies equally to the M20.

All I initially wanted to know was if anyone had heard of used a special tool 13-4-010/020?
Which I do not need now anyway 'cause I made my own.
Hope the above clarifies for the gurus.