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On 5 Aug 2003 at 16:28, - = orntar = - wrote: > Well I failed my emission test. It is really frustrating and stressful > to know that the state is really trying to get me to get rid of my > beloved car. And I am almost there. > > Here is the history that I know of... 1970 original FI 168k miles > (probably) and it leaks and burns oil, so I know it is tired. It may just be a problem of burning oil, but here's a long shot. Measure the charging system regulating voltage. Take your car for a drive to warm up the engine and stabilize the charge on the battery, then pull it into your driveway and leave the engine running. Connect a voltmeter across the battery and bring the engine speed up until the voltage doesn't rise any more. That voltage should be 14.1-14.4V. If it is less than 13.5V replace the voltage regulator with a Bosch 30-019. Low system voltage makes the FI run rich, which would give you high CO. If this is your problem, replacing the VR will make a dramatic difference. -- ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org