MSefi.com read only forum (Jan.15,2018)

Running MS2 V3 2.89 code on a VW4 cyl. direct coil control.
So reviewing my logs after a cold start my coolant sensor feed is pretty steady along with the intake air sensor. After a hot start though its shakey throughout the log. Intake air sensor stays pretty steady, but coolant temp is a jagged line. I've checked the wiring and the grounds. Anyone have any idea why the output from the sensor is only effected after a hot start.
I've attached logs of a cold and hot start and my msq.

Not to worry!!

Both logs look quite normal IMO. In the first log your clt went from ~66 to ~190 degrees, a difference of ~125 degrees. In the second log your temp only varied ~24 degrees which accounts for the more jagged looking trace spread across the vertical axis of the log.

I have seen this many times and it does not indicate a problem.

Ken

Thats good to know and makes sense. Thanks.