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On Mon, 2003-02-17 at 10:10, Jim Adney wrote: > On 16 Feb 2003 at 20:51, Thomas Ainlay wrote: > > > Yes the 412 has the original FI. I was thinking that it was a flooding > > issue rather than bad rings but wanted to ask for input. How would a bad VR > > cause this problem? > > As the VRs get old they age and tend to regulate at lower and lower voltages. > For some reason, the FI tends to run rich as the system voltage gets lower. I > SUSPECT that this was a "feature" that Bosch designed in to richen the mixture > when cranking, and more so in cold weather, but they never foresaw the > consequences of doing this on older cars. > If this is a 412, it should have an alternator, and solid state VR. I wouldn't think that a solid state regulator would age much. -- Russ Wolfe '66 FB MT '71 FB AT '65 Bug (not running) russw@classicvw.org http://www.classicvw.org ------------------------------------------------------------------- List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org