Ok I'm running a 2000 Civic HX manual with about 187000 miles. It has
had good routine maintenance and I just had the belts/water pump change
at 180ish.




For the last couple weeks I had been having a problem when cruising at a
steady 2500 RPM in 3rd gear I could feel a miss and the CEL would flash
for a few seconds. As soon as I accelerated it would go away. It does
not seem to occur when driving at faster speeds in the same RPM range.




I have used HEET and injector cleaner but the symptoms have not improved. I installed new plugs and wires about 12000 miles ago.




I used the jumper trick and counted the flashes on the CEL.




I think I have the correct translations.




12 - EGR - exhaust gas recirculation lift valve


71 - random misfire cylinder 1


72 - random misfire cylinder 2


73 - random misfire cylinder 3


74 - random misfire cylinder 4


80 - EGR Valve/Line




I guess the question is - Can the EGR cause the misfires? The car
doesn't seem to have degraded mileage but I don't want to destroy it.




I found a Duralast EGR for pretty cheap and it looks like an easy install.




Here is what I found http://www.tegger.com/hondafaq/egr-fix/index.html




Any help would be appreciated I am a little over my head on this one....