4000S Quattro, 1985, 160000 miles. *** Hesitation ****

[DK]

I had an issue for a month, somewhat similar but mostlikely different.
Coolant temp sensor was leaking, causing a short between the wires.
Upon cold startup, it would hesitate, RPM didnt go up with the
throttle applied etc, was not drivable for about 30 secs then it would
finally normalize. Maybe something to look into, maybe even replace it
if its really old. check the specs on the sensor.
I get around 20mpg in town, short commute, what is pretty decent for
an 5cylinder with awd and CIS.