I just have someone did a swap of a 2001 gsr into 2000 Lx civic. I use the 2000 si harness and 2001 gsr ecu. Random misfiring in 4 cylinder. Change the ignition wire. spark plug. distrubitor, and fuel regulator. Check the fuel pressure, injectors, map sensors, no problem with them. Then take it to the acura dealer and have valve adjustment. Still did not fix the problem. Don't know what to do. Need some serious help. Thanks

 

Check all the wiring. Something has to be up with it.

 

lol the acura dealer....well ig uess you had to try SOMETHING

 

is the "valve adjustment" all the acura dealer did????did u tell them there was a random misfire in cyl 4? id recheck ur wiring....u never know.

 

could be a bad ECU.
just follow the procedure in the helm's manual.

 

How to find out if it is the wiring? Thnks