02-19-2013, 12:01 AM
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#6 (permalink)
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Premium Member Bitches
Join Date: Jan 2012
Location: SoCal
Posts: 14,824
Drives: a lot
Rep Power: 17152
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Quote:
Originally Posted by ByThaBay
You are probably hearing the "Spring Test." During this test the ECM operates the throttle to check if it can react to the command and return to the default (home) position. This self-test is used by the ECM to determine that the spring and motor inside the throttlebody are working correctly.
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Quote:
Originally Posted by macaddict111
Ooo that sounds about right! Where did you lear about that ByThaBay? Rep!
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 WTF?!?!?!
Quote:
Originally Posted by ByThaBay
I read about it in one of my books, I think it was called "diagnosis and repair of automotive electrical and computer systems" something like that.
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Can I borrow it?
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