So I notice when I start my car the idle will go up normally but qhen it starts to settle down its almost turns off then catches it's self and after I do start driving it. The car idles at around 450 shouldn't it be around 750 or the 1 line. Please let me know. So far I only tried cleaning my maf. Thanks

 

it can be air filter

 

Since you have not mentioned any engine codes... I might suggest the the full ECU+closed throttle+throttle position+idle air relearn.,,

it's a pain to get right .. but its free to try

http://www.6mt.net/forum/performance...rocedures.html
https://www.google.com/url?sa=t&rct=...j08XWorR_E6J9A