hi could any 1 shed some light for me iv got a s2 erst running a full efi conversion cut it running really lean the co is at 0.30 - 0.40 but when i put it on the analyzer and try to adjust it nothing is happening

plugged in the snapon scanner and it came up with code 59 co pot out of limit when the car is running

and code 58 co pot earthed when i just have ignition on anybody know if it just a faulty co pot adjuster

 

sounds like just a faulty co pot to me- you could try resetting the co pot to its centre point- it shows you in the haynes how to do it, i'll dig it out tommoro if you want?

 

please would be much appreciated

 

the true centre point of adjustment is found by turnig the screw 20 turns in one direction then 10 turn in the opposite direction.
there is no stop at either end of the screws range so this is the only way to find its true centre.
anti clockwise richens the mixture, clockwise leans it off from there.
If the co pot still doesn't seem to work test it with an ohmmeter between either of the outer pins and the centre pin- it should read between roughly 448 and 5993 ohms- anything much more or less and the co pot is deffo not oworking right.
hope that helps fella

 

thanks very much will have a look when get to work