Loosing Power

[stepasha]

I just bought 03 SI. with 31k on it..had a p0420 CEL going on and off...till recently i started to loose power badly... engine wont go into higher rpms. It starts to make really weird noise like its going to explode... and last time i checked i got
another code
p0319 engine over speed condition
1 engine over-accelerated
2 vehicle driven too fast
3 if no other codes stored discuss with customer
p0420

1catalyc converter defective (FAILURE POSSIBLY)
due TO
2engine misfire
3large vacuum leak
4engine oil leakage into exhaust-valve guide seals, piston rings

what should i do? its COLD in Ohio.. dont really want to take converter off...
i want to be sure... intake got louder!

 

[BrutalB83]

And you thought it would be a good idea to post this in the 1984-1991 Civic/CRX forums why???

Post in the correct forum, and maybe you'll get an answer...

 

[D15Beater]

mine did that once....rpms just get lower and lower. turned out i had spun a rod bearing. It was a 85 sohc engine though. Maybe youll get lucky.