Hello

I have HONDA CIVIC DX 1994 SEDAN 4 DOORS.
Type of engine D15B7
and when I got to 1500RPM in the gauge its start to jump (if I put more gas the jumping is gone).
I asked people in my country and they told me I need to clean the IACV.
Is this the only part that can make this problem?
The simple solution is to clean it?
Do I need special material to clean it? (carb spray is very strong and I am afraid of the sensors)
Appreciate your help and knowledge specially people who have this specific problem and resolve it.

Thank you

 

If you ignore the gauge, does the car drive smoothly?

 

No when I am in 1500RPM it feels like the car is bouncing.
Also if its help you to get more information when I stand in red light for example the rpm is very low like 300 and the car is really shaking.

Thank you

 

Sounds like a misfire issue. Post the CEL codes, and do an ignition system tune up if the parts are old. Then go from there.

 

First you should check if you have a cel then go from there. If not clean the IACV and its also a good idea to clean the throttle body. You can use carb cleaner or just use throttle body cleaner they are both similar. Also a good idea to check and make sure your air filter isn't clogged.

 

Carb cleaner 100% don't damage the IACV at all?

Thank you

 

I've used it and many other people have just spray it where needed and not the electrical components. Check this tutorial here https://honda-tech.com/acura-integra...valve-1575913/

 

Thank you will check.

 

You actually disconnect the IACV from the sensor and coolant line then clean it.

I fill the bucket with carb cleaner then soak it.

Make sure to remove the gasket before soaking.

 

You had this problem before?

After cleaning the IACV you press gas until 1500rpm and it was stable without jumping?

Thank you

 

^Does not fit with idle problem.

 

This is my problem I have added a video to give you the best real time situation.
So please if someone has\was this exact problem and resolve it I will appreciate the help.


Thank you

 

With the engine warmed up, what happens if you don't touch the gas pedal and just let the engine idle?

 

The RPM gauge stand steady not moving a bit.

Thank you

 

You don't have an idle problem.

 

Has anyone been able to solve this?