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Squalled
24-03-2014, 08:45 AM
Hey guys,

Is it just me or does the rpm drop down low and come back up again? I have a friend with a Prelude VTIR as well and his does it but doesn't drop as much as mine.

At times it's gone to 0 and then back up. It's even turned off a few times while driving and the green key light comes on if it turns off. Any help is appreciated.
curtis265
24-03-2014, 09:39 AM
sounds like main relay
Manabir
25-03-2014, 10:51 AM
mine was doing the switching off and green light flashing crap.
i changed the ignition switch relay and it fixed it.
http://www.preludepower.com/forums/showthread.php?t=368458

not sure if that would affect the idle too, but i am guessing that the car turning off while driving is the bigger issue.
Squalled
25-03-2014, 12:27 PM
mine was doing the switching off and green light flashing crap.
i changed the ignition switch relay and it fixed it.
http://www.preludepower.com/forums/showthread.php?t=368458

not sure if that would affect the idle too, but i am guessing that the car turning off while driving is the bigger issue.

Wow thanks mate. Yeah more concerned about it turning off while driving.
Manabir
25-03-2014, 06:48 PM
No probs.
Even though I no longer have a Honda, I may as well still use some of the knowledge I have built up over 11 years of Prelude ownership. (Between a 2nd gen and a 5th gen.)
RenzokukenJ
25-03-2014, 09:56 PM
Hey guys,

Is it just me or does the rpm drop down low and come back up again? I have a friend with a Prelude VTIR as well and his does it but doesn't drop as much as mine.

At times it's gone to 0 and then back up. It's even turned off a few times while driving and the green key light comes on if it turns off. Any help is appreciated.

Cleaning my IACV fixed this issue on my 5th gen
ecutthro
15-06-2014, 12:11 PM
Is the idle problem only on cold start up or when the engine is warm too?
Squalled
16-06-2014, 07:47 AM
Both. I think it could be a dirty AICV possibly as I've heard that what can happen.
RenzokukenJ
16-06-2014, 01:28 PM
Both. I think it could be a dirty AICV possibly as I've heard that what can happen.
Clean it, takes 10 mins
Squalled
16-06-2014, 01:50 PM
Where about's is it on the throttle body? What would I use to clean it? Anything specific?
RenzokukenJ
16-06-2014, 04:26 PM
In between the throttle body and back of the engine, attached to the throttle body itself

It's bolted on, with 2 small coolant pipes going to it

Use throttle body cleaner, spray the shit out of it

It will be all black shit inside
RenzokukenJ
16-06-2014, 04:27 PM
Also clean your EGR, google that one, that was another 10 mins, for lols start your car without it, sounds funny

Nekminut broken car