This one has me stumped at the moment. One of my 92 Kensingtons is running very rich at idle and is pulling excessive vacuum. (Sorry i don't have an actual #) So much it is actually holding my BOV open at idle. I have checked for obvious restrictions in the intake. Intercooler and all piping are free of any blockage, air filter is off, and the turbo is spooling freely. If anyone has ideas or experienced this, please let me know. Thank you!