i got my car back from getting an engine swap and the check engine light was on, it gave me a code 03 03, i reseted it and it came back on giving me the same code, i checked up on it and the definition i got was "Front Left Heated O2 sensor" does this mean that i have to change my front 02 sensor? there is also a lil smoke coming from the front exhaust manifold, the guy said that the greece is being burnt out, it will stop after a while, what do u think?
also my air bag light is on, why?

 

Yes - replace the o2 sensor (check the harness first - i.e. that it's plugged in).

Airbag light indicates that a problem has been detected with the SRS system - there will be a stored code that you need to retrieve. you can try to reset the light with the procedure in the stickies.

Smoke might be oil leaking from rear valve cover gasket...

 

LOL...

 

thanks, i checked the harness and they were pluged in, now i am wonderingif ii should go under the car and check on the manually, see if they are put in right, well i reseted the check engine light and i am gonna drive it to work tonight and see if it comes back on.
about the airbag light, they must have pulled teh fuse out, cause i checked and there was no airbag fuse so i put one in and the light went off...... now all i have to do is wait for the CEL to coem back on and get the code

 

Good work on the air bag fuse.

Yup - you're doing the right thing with the o2 sensor. If the same code returns, replace the o2 sensors.

 

well the CEL came back but i havent tried to get any codes yet, i have to go to work and prolly in the morning i will get it,
now my car jerks on accelaration, when ever it get to like 20mph it starts to jerk real hard, is my tranny going out? well i siad that tranny cause it seems like it is struggling between gears and when i drop it in 2 it just drives good.