[boyt911sc]

Tom,

Find someone who understands how the CIS works. The resistance of the WUR is not controlled by vacuum!!!!! The 25 Ohms reading indicates that it has a good resistance (heater) but that does not mean you have WUR that has the control fuel pressures in spec. A pressure gauge kit is a mandatory tool for fuel injection troubleshooting regardless which system you have. Without one, you are assuming too many things that are critical for a meaningful diagnostic evaluation.

Next, focus on the following:
1). Source of air leak if any.
2). Presence of sparks and correct ignition timing.
3). Have the exhaust gas analyzed (before cat if any).

Since your engine is not lambda controlled, it is a lot easier to troubleshoot. Keep us posted.

Tony