hey everyone,

i have a 91 lude swaped with a obd1 h22a


o0k here we go

my idle will not drop more then 1800 rpm most of the time it stays at 2k i did everything i can think up to fix it.. the egr and 02 sensors are not hooked up and just found out the knock sensor is hooked up as well.. when i rev the car up it starts to pop alot like im getting to much fuel kinda feels like it missing but it has new plugs and wires and the timming is good can someone plz help

 

Vacuum leak somewhere, check all connections at the intake manifold, which includes FITV, IACV, Starting air valve, PCV, and all those little black hoses coming off the manifold. A good way to do this is with some carb cleaner, spray each connection, listening for rpms to come down. Also, could be air in the coolant passages, as the air will migrate to where the temp sensor is and cause the car to think its cold.

 

o0k i cleaned and checked all the but i will clear the air from the coolant and see if that helps will the air in the coolant make the fan not turn on?

 

if you got the the faq sticky thread at the top of the honda prelude forum there is a thread on idle surge issues that fully covers this and how to fix it. its great you should check it out if you havnt fixed your car yet.

 

its because your 02 isnt hooked up. its guessing you a/f ratio and running rich. hook up the 02 problem solved

 

Yes air in the coolant will cause the fans to not turn on because it thinks your engine is cold

 

o0k i found out the p13 was bad now have a p28 car idles fine now and i just need to get it chipped thanks for the help guys