Hello, I need a little assistance. I recently had to replace the ecu/pcm in my Civic. I had the dealership do it. The car out of commission for about a year before I took it to get the ecu fixed. There was less than a quarter tank of gas that sat in the car for that period of time. I added some fresh gas while troubleshooting the car when I determined the ecu was bad. Once they flashed the used ecu at the dealership the ran great for 3 days. I filled the tank with premium and added Lucus injector cleaner as soon as I got the car back to the house. Now just above a half a tank of gas, I cranked the car this morning and noticed a rough idle. I backed out anyway thinking it would pass. As I started down the road the car spit, sputtered, and hesitated as I tried to accelerate. I turned around and took my gas guzzling truck to work. Where should I start? I though all was well! Any help would be appreciated.

 

The car idles at 1200rpm and if I hit the Excelerator it will advance too 3700 rpms and that’s it. Do I need to reset my idle or something?

 

You'll want to head over to the 06-15 Civic section: https://honda-tech.com/forums/honda-civic-2006-2015-79/