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Old 07-24-2009, 03:45 PM   #1 (permalink)
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Question Q on IAT and TPS in ScanGauge II

I've been using my ScanGauge II for about 2 months now. I love seeing all the parameters and tracking my MPG.

Two questions came up.

1. While it is 68-75F outside, my IAT is around 110-135F. It drop to the high 90s when driving. Is this normal? The temps seem high to me. Could a clogged air filter cause this?

2. When I have the car off the TPS reads 17. When started it reads 14. When at WOT it reads around 78. Shouldn't this be reading from 0-100?!? Is this normal?

Thanks all!
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Old 07-24-2009, 04:12 PM   #2 (permalink)
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I'm not sure about this car specifically, but WOT does not mean WOT. A lot like a governor, this keeps some people in check and keeps them from putting too much stress on the motor.

Those temps sound about about right on a stock intake.
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Old 07-24-2009, 05:28 PM   #3 (permalink)
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from what i remember, with my stock intake, i was a bout +20 ambient temp when moving.

i don't use the TPS function
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Old 07-24-2009, 06:17 PM   #4 (permalink)
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TPS cant be 0 or else there will be no air going in.
and on my car I know when i floor it it goes up to 99

my car idles at 14
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Old 07-24-2009, 07:03 PM   #5 (permalink)
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Quote:
Originally Posted by raybyduhbay View Post
TPS cant be 0 or else there will be no air going in.
and on my car I know when i floor it it goes up to 99

my car idles at 14
then that just means you need to floor the car harder OP lol
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Old 07-24-2009, 07:11 PM   #6 (permalink)
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OP, What trim level is your car? manual or automatic? If its an auto its possible that it prevents you from opening the throttle all the way at low RPM to prevent it from bogging down.
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Old 07-24-2009, 08:02 PM   #7 (permalink)
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Originally Posted by rhobere View Post
OP, What trim level is your car? manual or automatic? If its an auto its possible that it prevents you from opening the throttle all the way at low RPM to prevent it from bogging down.
It's a 6 Speed Si.
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