I had some
MAF cleaner from SuperCheap.
Mine now idles at 750 from memory but it was at 600, when I stoped and put the car in Park it would stall, now it keeps ticking over.
I would clean first and take it from here.
UK
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How 2's: Change rear view mirror, Install backfire valve, Change foam front seats, Install auto transmission cooler, Replace Trans Shift Globe, Remove front door Trim, Paint AU headlights, install door spears, Premium Rear Parcel Shelf, go
here...