1991 s13 dropping idle

[randomboxguy]

hey guys on the forum i have a red 91 s13 that i need to get smogged in ca. i brought it to the place to get smogged and was told that it had a rough idle and it wouldnt pass because of the car aborting the dyno?.i need help or trouble shooting. it will sit at 1k then drop down to 800 or 900 rpm and feel like it wants to bog out. any one who can help would be greatly appreciated.

[3NDLESS]

:/ "Idle bogg issue ka24de" Whatever, just check your emissions equipment because those are typically the culprit. ie: iacv, egr, fpr, etc.