Hi guys im new in here and I was wondering if u can help me. I have a 1990 Honda Accord and I just did a engine swap. I went from a F22 stock motor to a F20 from a 1994 Honda Prelud none V-TEC. Every thing came out right but my motor keeps ideling up to 3500 RPMs then back down over and over again all day every day. Can any one help with this problem? I would really appreciated thanx.

 

You have a vaccuum leak.

 

or air in the cooling system.

 

Hey thanx thats good news cause some guy told me that the computer was not compatibel with the motor, what do u think?

 

Hey guys its me once more I took it to get checked and they told me that the computer is not compatible with the motor. Now I have to buy the F20 computer but my question is, do the plugs fit the same or do I have to change more than the computer. Do I have to do any wire cuting or is every thing just plug ins?

 

The wrong ECU would not cause that.

 

Your mechanic is an idiot.

 

hahahaha i think ur right and the good thing is that hes not my mechanic. He some guy that has a shop around my house. My friend is my mechanic and he told me that that the guy was an idiot. I still looking but cant find any vacume leaks. I think im gooing to get the computer though i hear people saying that its gooing to give me more red line what do u think?