Why does the AC cause the 1988 VW Cabriolet engine to misfire ?
When I drive my 1988 VW Cabriolet the engine runs fine (new injectors), but it will misfire as soon as I put on the AC when I am traveling at below 10 MPH or in heavy traffic. Faster speeds are OK, but the engine misfires at lower RPMs when I have the AC on.