jordan_rael_420

OK i have a h22a and everytime i start it in the morning the idle fluctuates from like 2000 rpm to like 800 until it warms up a lil bit.and when i take off from a start it sputters for a sec and between 1500 to like 2000 rpms then takes off what could cause this i have a cel code 41 which is the o2 sensor heater but i dont think it could cause this does anyone know whats could be causing this.

shooter93

man i got the same problem right now, but im throwin a 23 (knock sensor) some one told me that when your cel is on that your computer runs rich "safe" mode, that could be it, idk, who put the jdm in it?

jordan_rael_420

i put it in. and i dont think its in safe mode because vtec still kicks on and everything.

shooter93

yeah i just got done putting my h22a in, my vtec goes out as soon as the cel is on, i can't get it to stop running super rich, do you have a littel valve ontop of the fuel rail that has vacume coming from the egr valve and going to the fuel pressure reg? i am going to redu all my vac lines tommorrow based on the helms manual, hopefully that will get rid of the rough idle, idk

jordan_rael_420

hey thanks i have the egr and that what u said hooked up except #8 which is the intake diaphragm i dont have the actual piece which the line goes to

mattsnooz

o2 sensor could cause that. Your ecu might not be lying right to your face....its just a possibility maybe. O2 sensors arn't too much money. If your obd1 you only need to replace one.

speedracer9k

fix your CEL first, then go from there

preluderemis

well i don't know why but i had the same problem and after fixing my knock sensor it went away.

shooter93

ok so here is what you need for the jdm vacume, i just did mine and got rid of a bunch of crap! http://members.***.net/twistedbydesi...uumdiagram.jpg[IMG]file:///C:/Users/jeremy/AppData/Local/Temp/moz-screenshot.jpg[/IMG]

nuezdaman44

definitely sounds like an EGR issue.. I had a similar problem until i removed the block off plate i had on the EGR. so it could be vacuum