Danny,
You are on the right track for
CIS troubleshooting. But before you start doing any alteration in your set-up, check for vacuum/air leak. Get the engine to reach operating temperature and let it idle for a few minutes and remove the oil filler cap. The idle speed should drop!!!! Next, have the exhaust gas checked using a gas analyzer and determine the current mixture reading.
The cold control and system pressures are
OK but warm control fuel pressure is too
LOW!!!! Check the WUR cold control fuel pressure from start to 3 minutes. There is another post today, where I suggested this simple test. Could you check the WUR ID number?
I could lend you one of my spare
WUR's for your test in case you need one. Do you have the
-072 or
-089? Keep us posted.
Tony