[Specialty Works]

Newbie here, so I replaced the 2.4 engine in my 05 CRV and drove great for about 1000 miles, now I am getting mis fire codes and random misfires. It wont start as of last night and I replaced all coil packs and plugs, I have spark and the timing chain and components are all new and not cheap parts (Cloyes brand). Any idea what would cause this? I have never had this issue before and I have worked on many of these engines.

 

[Carbuff2]

How many miles on the replacement engine? Is it from the same year as yours? If not did you replace the ECU as well?

I'd:
1. adjust/verify valve lash
2. check timing chain tension and guide tensioners

Could the injectors be sticking or leaking causing the wet plugs?

Assuming you are in North America...