[V8] Re: Cold killing gas mileage (update)

[QuickAudi at aol.com]

Actually, I didn't say it had any effect on it at all.  I tried one (blocking the radiator to increase the heat), and since it didn't work, I'm going to try the other (working on air temp sensor.)  One of the two, in my mind, is affecting my gas mileage, and since it wasn't the first, it must be the second.  
Or I'm screwed and it's something completely different.
I guess I still didn't make myself clear.  My coolant temp is running at spec.  No problems.  I don't even see a reason to cover the radiator because it seems to keep it at the right temp.
See, I think if the air temp sensor isn't sensing right, it would cause my mix to be off (which is why my car also stumbles at start and when I first move it.) and therefore killing my gas mileage.


Joel
'90 V8q
'86 5kcstq


In a message dated 1/13/2005 10:29:53 PM Eastern Standard Time, Enzeder <enzeder at comcast.net> writes:

>I'm no expert, so I'm not trying to be smart, but how is the air temp
>sensor going to effect coolant temp?
>
>Remember that the temp gauge and ECU get temp readings from different
>sources, so if both indicate a low temp, then the engine/coolant is
>probably too cold.
>
>Did you replace the thermostat yourself?  I ask because I did mine in the
>last month and the old one looked better than the new German OE
>replacement.  I was tempted to leave it in (obviously I didn't).  My temps
>now hover below the "¼" mark (what I'm guessing is the 80°C mark, so I
>guess my temps are around 70°C - mileage has improved 1-2 mpg).  It was
>70°F here in Maryland today, but as soon as the cold front rolls through I
>will cover the radiator in front of the engine driven fan.
>
>My car had the same symptoms you describe with the temp gauge barely moving
>to the 50°C mark.
>
>Good luck,
>Arryn