code 71, 72

[K24cb7coupe]

miss fire in cylinder 1 and 2. What could cause this? I just replace the spark plugs and wires, coil, rotor, and cap. The car starts up fine after it has been sitting for a while, once it heats up it acts up. It idles at 500rpm and lobes a little and if it sits idling long enough it will shut down. At stop lights i have to hold the brake and accelerator to keep the car running. someone please help me before i go crazy! :screwy: :crazy:

[brads94accord]

well i had that problem...i had really bad idle surge and really rough idle..turned out to be my EGR valve, i removed it and put in a block off plate and now my car idles perfect. did your plugs have any oil on them?

[3kgtdrvr]

u sure u have the right firing order?

[NoPainT]

hhmmmm.... I thought you'd fix it by now. Good luck man

[SLow_POke]

u sure u have the right firing order? x2:???:

[K24cb7coupe]

the firing order is correct, i am going to try the egr block plate. half of a day it was fine then shit just went down hill

[.blank cd]

wont that block plate cause you to fail emissions tho?

[3kgtdrvr]

...not if u swap it back before u go :goodjob:

[civicduty]

have you tried a differnet ecu had one do that and it ended up being a bad ecu.

[brads94accord]

wont that block plate cause you to fail emissions tho? depends if you are OBD1 or 2...right now running my OBD1 ecu i dont throw a code for it...im sure i will with my obd2 ecu in...

[3kgtdrvr]

^u would fail either one. cel for obd2 and ur NOx would be wayyy to high on an obd1 car