Hello fellow Aveo owners,

I have had my 2004 Aveo 5 door LS, auto trans for almost 3 years now. I do all my own work but do have issues diagnosing electrical issues . My car has 235000 km, 146000 miles. I have done the full timing belt kit, replaced wheel bearings, cv shaft, brakes etc...

I am here now because my car is due for our emissions test next month and my check engine light is on and they wont even look at it if they see it lit up.

I put a new fuel cap on today and picked up a new NGK 02 sensor. I do have a basic OBDII code reader and it is showing me about 5 codes. Fuel mileage doesn't seem out of whack, runs about 425kms/264miles per tank city driving, regular fuel containing up to 10% ethanol. With supreme fuel, no ethanol (or so they say) it runs about 520kms/323miles. It does feel underpowered to me and has since I bought it, I don't pound the p**s out of it since I need it to last.

Heading out with my scanner now to recheck things. Will be back with codes and questions lol.

Cheers
Jeff