I have a 94 honda accord lx and I have replaced every sensor from TPS,IAC,MAP and the little white tipped sensor on the back drivers side of the manifold and the car still idles up and down between 1 and 3 grand even after warming up ...what else is there that could be causing this problem.....Also around 4 grand it seems to be loosing power will not pull as hard as when it first starts off...any Idea what that could be?

 

You could be low on coolant, could also have air in the system.

 

I also checked the coolant and replaced the cap...

 

http://www.cb7tuner.com/vbb/showthread.php?t=53161&highlight=idle

Check out this link, it helped me with idle problems. If you read the whole thing, there are instructions on bleeding your coolant system (it worked well for me).

 

https://www.hondaaccordforum.com/SUR...m_46125/tm.htm

take a look at this as well..

 

Hey everyone...thank you all that gave me useful info in trying to figure out my surging idle problem....on 94-97 models if you ever run across this problem pull off your throttle body and under that is a plate with 2 phillips screws pull that off and most likely the white peice with 2 slots on the sides worked itself loose creating a vaccum leak which causes the car 2 idle up and down the whole process takes about 10 mins