I have a JDM vtec H22A motor and recently it has been idoling super weird, i will roughly idol between 1000 and 1500 rpm and it will not let me get over 4000 rpm while driving, i added a quart of oil to it and let it sit over night then it ran perfectly in the morning and for the next few days, then i took off kinda quick and the light came on and my engine started goin rough again i checked the oil and i was full.... any ideas?

 

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