I just got my h22a swap done in my 1992 accord and the idle has been fine for a few days but all of the sudden the idle goes real high then drops real low it flucuates. Then after it warms up it seems to stop. Could this be the thermal valve and its under the throttle body right?
p.s
when im driving and let off the gas the RPM's drop then come back up.

 

Make sure you clean out the throttle body and the hoses that are comeing out from it. If that don't work then unscrew the thermal valve and if its dry then thats your problem.

 

alright ill give it a look in the morning thank you

 

Clean your Idle Air Control Valve (IAC), and throttle body. Then adjust the Fast Idle Thermal Valve (FIT) if required.

There are 2 or 3 threads in the FAQ that cover how to do this. Or search for threads with the topic "surging idle".

 

ok i took the therma valve off and it was 100% dry no coolent at all so does that mean all i have to do is clean it out? and where is the IAC on the H22A motor i dont think its in the same place as on my d16z6 civic

 

Were the coolant lines all hooked up between the FIV and the intake/thermostat housing?