i just bought a crx.the motor is a 93 dx block with 91 si head.the car starts and drives but the idle is crazy and ill be driving and when i reach 2300rpms the car stutters then when i pass 2300rpm its ok. and like around 2300rpms if i let go of the gas it will start jerking around.????????? i replaced the o2 sensor.and nothing.then someone told me to try adjusting the idle and i twisted it in and out and nothing.please help me out this is going to be my dailydriver.oh the guy i bought it from said it might be this sensor that was on the intake manifold or throttle body.i forgot.but if know why the car might be doing this let me know asap.i would greatly appreciate it.thanks>

 

Does your car have any CEL's?

Pull back the passenger side carpet and count how many times the ECU light blinks.

 

the car like blinks once and then it blinks like 13 times.so i guess 14 times.im new to hondas and i need this car running right.pleas help me out

 

code 14 is your idle air control valve ,common prob on honda civics

 

ok,so how do you fix it and weres it at please let me know

 

i think its more than that,you sed you car is jerking? like its bucking? it could be your idle valve and or a clogged fuel filter.

 

yea it like bucks at 2300rpms. so were is the valve and how can i fix it?

 

there are a few valves i would lookt at, right behind the intake manifold,its boloted to the back side of it,also check under you throttle body,there should be three bolts holing that one in place, i have always had problems with both of these valves.

 

yea ill check but what am i looking for?

 

the idle air control valve is located on the backside of your intake manifold it will have 2 small coolant lines going to it and 1 electrical connector
sometimes you can take them of and clean them but I'd just get one from a PICK-N-PULL

 

so do i replace all of these sensor?

 

I would start by replacing the iac valve seems how you have a code for it

 

ok,before you go out spending money.take it off and clean it with idle control valve with carb/choke cleaner. then re assemble it. also take the valve off from under the throttle body and block it with a piece of a cerial box and tighten it back down,see if it has any effect. if not replace the iacv .