Idle problems

[Touge180]

Need help with my car having trouble with idle issues which just started if Im rolling and come to a stop the idle will drop to 0 then go back up to 750rpm and if I beat on it which doesn't happen much it will misfire then clear up after a bit changed the plugs was wondering what else to do car is a 1991 dohc ka.

[818 ZENKI]

Hmmm have you cleaned your iacv?

[TypeXFan]

im having idle problems too, at start up the idle struggles, and when im rolling the idle sometimes drops down to 0 and even stalls the car, sometimes the idle will shoot up to 1500-1800 and come back down. After a bit of driving it stabilizes. Gonna have a look at the iacv hopefully wont be too hot to work on it. Give you a update when I can.

[nissan4ever]

Check the IACV. It might also be an electrical issue. Jiggle the wires around the engine bay and see if the idle changes.

[Touge180]

Thanks guys i jiggled the wire a little tonight for the Mass air flow and the idle changed gonna mess with it some more tomorrow i also might spray the iacv with carb cleaner.

[s73]

I learned of a quicker way to clean the iacv without taking the whole thing off (of course....this is after i took the whole thing apart)

You can try just by taking out the idle screw, and shoot some cleaner in there...then re install screw...reset idle....done

[Touge180]

Im not gonna take it apart as this is my only car right no im just gonna shoot cleaner down the hose to the iacv.

[t3chnikqality02]

you should really spend 30 minutes taking out the iacv, spraying it with brakleen, using a toothbrush or something to scrub off the carbon build-up and then allow sufficient time for it to completely dry before reinstalling it. it may also be the MAF