im talkin about the valve thing under the t/b with the coolant hoses running to it.. is a 98 b18b supposed to have one? mine doesnt.. the hoses go right to the t/b im thinking maybe somone switched out the t/b.. im asking because im having idle problems and cold start problems..(dies when cold unless i give it gas till it warms) engine is stock and in a 98 civic dx.. with stock ecu ( thinking might be a problem as well)

 

bump

 

I believe they stopped using the Fast Idle Valve on OBD2 engines, which leaves the cold idle operation up to the ECU. I don't know if the ECU is your problem or not. Sorry... not much help.

 

my friend has a odbII but his has the fitv =/

 

anyone's LS have it or doesnt have it?

 

i had the to replace the one on my 95 integra but when i was doing some research on it im pretty sure i remember reading they dont have them on OBD-2 motors.

 

check your air idle control valve...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kchungb17a &raquo;</TD></TR><TR><TD CLASS="quote">I believe they stopped using the Fast Idle Valve on OBD2 engines, which leaves the cold idle operation up to the ECU. I don't know if the ECU is your problem or not. Sorry... not much help.</TD></TR></TABLE>

You are correct. Only OBD1 engines are equipped with the FITV. The cold idle is controlled only by the IACV on OBD2+ cars.

 

ah... guys.. i think i foud somthing else, its a 98 civic with b18b running of the stock civic dx ecu.. if the stock sohc dx engine had a fitv, wouldnt that mess with the idle seeing how the b18b doesnt have it?

 

if its a b18b running off of an d16 map, of course its going to be messed up. You either need to chip the ecu and run a b18 map, or get a p75 ecu and run that.