[200q20v] Smooth Running
dbpulvino at hotmail.com
Sun Oct 21 17:05:26 EDT 2001
Quick question for everybody,
Noticed with the colder weather coming on my car is running smoother and
stronger at part throttle. Any ideas why this would be?
I know that combustion favors colder air (cold air is denser, etc, purpose
of intercooler), but I am willing to discount that as a factor here. I can
see stronger running as a potential result, but I think 30 deg f. would be a
neglible amount. In addition, I don't think it would also lead to smoother
running as well. I have had fault codes come up for the intake air temp
sensor, but I checked and found out the replacement temp value for an
incorrectly working temp sensor is 80 degrees cel. So, no correlation
As an ancilary, I've noticed some weakness in the tbv but not to the point
of constant annoying, and predictable dying.
Any ideas on what could be affected by the cooler temps? Air temp changing
pliability of hoses, a sensor working more effectively at temp, knock
sensors etc. Something is obviously going on here, but I'm not sure what to
look for. It would be nice if the power curve and running characteristics
spent more time like this.
91 200, Seattle Wa, approx average temp 45-48 f.
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