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heres some input: 1. replace iac motor, if it does it cold and hot.2 if hot only replace both o2 sensors (or 3 if it is a v6)best way is to plug in a scan tool and get the codes an diagnois the codes.

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โˆ™ 2006-11-10 00:48:41
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Q: What causes a 99 6-cylinder 5 speed mystique to die after starting unless you keep your foot on the gas and keep it running as soon as you let off the gas it dies but will start right back up?
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