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Mixture adjustment advice please

audicdl

New member
Hello all, my car pased it's MOT yesterday but I noticed the emissions printout showed the CO content at only 0.246%. I'm pretty sure it should be 1%.
I can't remember which way to twiddle the screw to richen it up. Can anyone else please?
Cheers
Chris
 
Screw it in with a 3mm allen key (anti-clockwise) to richen the mixture, reduces the amount of air in.
Just to check, you are thinking off the adjustment screw on the underside of the air flow meter, which is the mixture
screw,
The other screw, on the throttle body, above the idle valve, which is more visible, is for the idle speed, this sometimes gets mistaken for the mixture screw.
 



[FONT=arial, arial, helvetica"]FQS Table #5[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"] [FONT=911 porscha"]PORSCHE 911[FONT=verdana,geneva"] (BOSCH ML3.1)[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"]Switch Position[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]fuel mixture[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]ignition timing[FONT=verdana,geneva"]


[FONT=arial, arial, helvetica"]0 stock[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]0%[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]0°
[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"]1[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]+3.1%[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]0°
[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"]2[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]+6.3%[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]0°
[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"]3[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]-3.9%[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]0°
[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"]4[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]0%[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]-2.79°[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"]5[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]+3.1%[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]-2.79°[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"]6[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]+6.3%[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]-2.79°[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"]7[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]-3.9%[FONT=verdana,geneva"]
[FONT=arial, arial, helvetica"]-2.79°[FONT=verdana,geneva"]

[FONT=arial, arial, helvetica"]
129 Tooth Starter Gear[FONT=verdana,geneva"]


But on the motronic cars, the FQS switch is used to set the mixture is it not. The above table was taken from http://frwilk.com/944dme/fqswitch.htm
 
The above was pasted from a table and the formattings gone a bit odd, and won't let me edit it.
 

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