Re: [DML] CO screw plug

["DMC Joe" <dmcjoe@xxxx>]

Andy,

You said:
"........it should never need adjusting for the life of the
vehicle ......"

This is incorrect. As the engine ages normal wear and component replacements
will alter the tolerances the factory adjustment was set at. The factory
setting is only good for the first 35 to 50k miles. Because the K-Jetronic
system is a mechanical system adjustments must be made from time to time to
compensate for tolerance changes. The L-Jetronic and later Bosch systems
have electronic sensors the adjust the CO mixture as the engine ages.

I do, however, agree that the CO mixture adjustment should not be altered
unless it is absolutely necessary.

DMC Joe
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