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Gas mileage improved with replacement of coolant temp sensor..

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Old 03-08-2007, 11:19 AM
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Default Gas mileage improved with replacement of coolant temp sensor..
I replaced the CTS recently. I was getting about 15-16 MPG with regular driving and with the same driving I am now getting 19-20MPG. Just an FYI.
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Old 03-08-2007, 11:41 AM
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Default Were you having bad readings? I'm getting about 12.9mpg and my wife drives it most...how easy is it
to replace the cts? diy? That's a pretty significant spike in mpg improvement worth a try for me

<img src="http://pictureposter.audiworld.com/109130/hid-diff.jpg">
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Old 03-08-2007, 11:53 AM
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I had the same results.
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Old 03-08-2007, 12:01 PM
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are you gusy talking about the green sensor that sits up right in the back by the firewall?
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Old 03-08-2007, 12:04 PM
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yes, definately DIY
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Old 03-08-2007, 12:12 PM
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Default What made you change it? Bad mpg or bad coolant temp readings? I have the bad mpg but my coolant r
eadings seem to be steady...
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Old 03-08-2007, 12:16 PM
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Default vag the car when the sensor is not functioning the ecu plugs in a number
I just had my sensor fail and have noticed the mpg went up a bit with the new sensor.
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Old 03-08-2007, 12:17 PM
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my coolant temps seemed to be rising slowly, oil was warmed up before coolant
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Old 03-08-2007, 12:29 PM
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Default just placed an order at rockauto $4.50 + $7.32 s&h...worth a shot just for the mpg increase you
essed

I will let you know if I'm as lucky as you.
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Old 03-08-2007, 12:30 PM
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which control module do you do a check on?
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