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I am running a Brenspeed 93 tune and my car idles at 1200 rpm's for about the first minute after start up, then dropsto about 900 rpm. Is 900within a normal range or does it need to be lower? Sometimes it just seems kind of high.
They all will idle aound 1.2k for up to a minute or so in warm weather then drop to whatever your tuner is set to. It doesn't sound as if anything is wrong with yours. Do you know how to access the custom settings in your tuner to see if it's set at 900rpm?