So my ex got bought a 96 honda accord doch vtec, it was running just fine until she had a friend look at the motor and realized that there were BMW spark plugs or some eurp. brand car and now it revs funny and i cant figure out what the problem is. It has honda plugs in it now. Any ideas?

 

Any cels? Try cleaning the iacv

 

alright ill give that a try, thank you.

 

So any cels?

 

im not sure what you mean, im not too good with cars haha.

 

CEL= check engine light

 

no, the light is not on

 

Here ill help you out in case you don't know how to

https://honda-tech.com/forums/honda-accord-1990-2002-2/cleaning-iacv-fitv-tb-1844067/

 

Try that first and let us know if the problem goes away

 

AAnd by reving funny you mean idling up and down right?not bogging out

 

yea it goes up and down all the time even when the car is warmed up.

 

Ok try doing what's in the link I posted

 

Are all the gauges working? Speedo, tach, everything.... and double check that O2 is plugged all the way in

 

Hello there, I had a similar issue with what I would describe as a surging idle.
In my case I found the problem to be a leaking intake manifold gasket.
The additional air being drawn into the engine was responsible for the surge in rpm.
My symptoms were much like what you described.
If you check your iacv and tb and still have issues, take a spray bottle with water and mist around areas you suspect a vacuum leak.
You should only concern yourself with areas downstream of the throttle body.
By misting these areas you can locate vacuum leaks by listening for a drop in idle RPM when you spray the leaking area.
Realize I am not talking about lots of water here, just a light mist.
Hope this helps, good luck.