Guys,

Don't laugh but I just seafoamed my car the 2nd time per the recommendations on the seafoam threads. Anyways, I forgot to put the vacuum hose back in when I took the car for a drive. The CEL came on and I thought it was just I got some seafoam on the O2 sensor.
Now I'm pretty sure it's because the lack of vacuum power to the O2 sensor upstream from the hose caused the sensor to read "not enough O2" and causing the CEL to come on.

Does that sound right? Did I seriously screw something up? Should the CEL go off in a few days?

Thanks in advance!

 

LOL!! Disconnect the battery and let the car reset itself.

 

Your car is more than likely fine. Just hook everything back up, reset the computer and voila, CEL gone

 

this should work... i need to seafoam my car too

 

no sweat- re-INSTALL vac line AND its clamp!

THEN remove the CLOCK fuse, iirc its #13 on passenger side footwell -or side of dash with door open
thats the secret power to the ECU- jst pull it for a minute or 2 and reinsert
that clears the computer of codes and start fresh

 

Thanks everyone I've already put the vac line (and clamp of course) back so I'll just do the ECU reset today.

Thanks!

 

drove it to the dealer for my free oil change and it self cleared right after I left, excellent Thanks again everyone!