The engine rpm's remain elevated during shift they slowly decrease towards idle but don't get to idle during a normal shift. This car was converted from auto to 5 spd manual I installed a clutch switch and installed a new wire to the ecu. I think it helped some but the engine rpm's don't decrease toward idle the way I think it should. I would like to hear any ones thoughts as to why the rpm's are slow to return to idle. thanks in advance
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