Accord 2002, dies at idle.

[amber pond]

Could be both the IAC and a vacuum leak. But definitely seems like a vacuum leak since you say it wants to die as you are actively braking

https://youtu.be/zMok2y05jNE?si=WyazppoTKfjq8kwy

🤪 could use this method to find the vacuum leak

[vague tree]

You’re probably right, and I doubt that it’s an big engine issue since it runs good when actually driving.

Vacuum leak shouldn’t be an difficult or expensive fix, i’ll look into it, thanks.

[vague tree]

’I don’t smoke, this is for fixing cars I promise’ 💀

[amber pond]

Of course. These motors are great on these Hondas. I doubt it’s the motor. Hoses and components are 24 years old. Bound to have some leaks

[vague tree]

quick update after driving it a bit more:

cold start needs a little throttle to catch, otherwise it struggles
idle hunts/dips and can stall when coming to a stop
if i blip the throttle it recovers, but drops again
noticed a slight stutter/hesitation around ~3k rpm under load
doesn’t seem temp-dependent (same cold or warm)

no obvious smoke from the exhaust, power otherwise feels normal

does this still point to vacuum/IACV, or should i be looking more at fuel/ignition (filter/pump, coil/distributor, MAP)?

[amber pond]

Do you have a check engine light? Distributor would point to a misfire.

[vague tree]

not sure about CEL tbh, didn’t check that, but I'm 90% sure it doesn't have one if I remember.

but it does hesitate/stutter around 3k so could be misfire related?