S2000 Under The Hood S2000 Technical and Mechanical discussions.

Tried everything but still have the shudder

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Old 06-09-2008, 11:24 AM
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So what would cause that on a totally stock car? I have an 02 with 58K miles doing that.
Old 06-09-2008, 11:58 AM
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Originally Posted by offroad2000,Jun 9 2008, 03:24 PM
So what would cause that on a totally stock car? I have an 02 with 58K miles doing that.
we have a learning ecu and when the temperature outside changes the car basically has to relearn to accomodate for the new varibles.
Old 06-09-2008, 12:01 PM
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So how long till it learns and stops doing it? I bought it about 3 months ago. It was a little cold still then and now it's 100 degrees. It's seems it's always done it. Maybe a little worse now than before.
Old 06-09-2008, 12:48 PM
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Not to hijack this thread about a car with EMS...

For oem ecu cars the problem is usually: MAP (whack or replace), IAC valve (clean), or throttle body (clean air passage to MAP).
Old 06-09-2008, 01:37 PM
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Thanks negcamber. I'll try those things.
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