Bone stock 90 GXL auto>sound clip/idle problem
 

Heres a sound clip of my exhaust at idle....some times it starts perfect at 750 and i'll drive and the idle will stay good or bounce around from 600-800 or sumtimes 500-1000.
small clip
the sound byte is when its idling 600-800
can anyone suggest what to check?

Sounds like a minor of my 800-1500 idle (I hate that... augh). I know mine is because my 2ndary plates are a tad bit too open. But I broke off the adjust ment screw so I'm SOL there.

Goodluck finding the cause though, I remember my car did that on and off for the longest time...

Vac leaks, dirty BAC, misadjusted TPS, bad grounds, the list goes on and on. Just do a full tune-up, clean the BAC, add a couple extra grounds, check the TPS, run some injector cleaner and hope for the best. These damn cars never idle well, especially the series 5's :)