My 89 vanagon is running real rich.
I have a serious hole in the header pipes, but not bad enough to try to replace it before winter.
When running driving the performance is very poor sputtering and spitting until I turn the ignition switch off and then immediately back on.  It runs fine, for about a minute then degrades rapidly to sputtering and spitting.
Could this be an oxygen sensor problem?
Maybe somebody can identify the source of  this problem.  If not, is there a data base where I can search for possible solutions?
tnx
bc