Klaus,

Yes early on in this problem I figured it had to be the temperature gauge. I checked the connections (determined some had replaced it recently) then performed a resistance check early in the morning and then after it warmed up and the readings were within spec. Also the dash temperature gauge seems to function as expected. That would have been a nice easy fix!

I am now focusing in on the MAF sensor. Even though I do not have any error messages I suspect the MAF may be sending a faulty signal to the ECM which in turn adopts a substitute value impacting the injector period - resulting in flooding when very cold outside.

However, I am a little confused on the results of my testing. One test for the sensor stipulates while the plug is connected and key on (not running) the voltage from ground to pin #4 should be battery voltage and the voltage between pins # 2 & #3 should be .1 - .2 volts. I did find battery voltage between ground and pin #4 and found .18 volts between #2 & #3 pins. Therefore it meets that criteria yet .... when I tested the resistance between the sensor pins #1 & #4 I found 753 ohms compared to the ALLDATA spec of ~ 110 ohms. Do you know if the ALLDATA spec is right and if this means I should replace the MAF?

With respect to starting the car without the fuel pump coming on. I have not tried that yet, but great minds think alike, I was planning to try that tomorrow morning. I will let you know what happens.

Thanks

David