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Discussion Starter · #1 ·
when the car is at idle, it will sit at 1000rpms and the jump to 1500rpm and up and down and up and down like i am reving it up constantly....
what is my prob guys...i got a 1990 dx
 

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Check your PCV. Mine was doing this for the longest time, then I swapped the PCV (by habit, it's only ~$5 so why not) and everything fixed itself. Idle dropped back to spec and the hunting stopped immediately.
 

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Discussion Starter · #6 ·
well..it does it after it warms up...would it have to do with the blower valve at all cause i have intake and it isn't hooked up just hangs there...and all the pcv is a tube right ? and what is IACV/EACV?
 
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