Help on OBD-II code. How do I fix?
 

P0153 Upstream Heated Oxygen Sensor circuit Slow Response - Bank No. 2.


Just installed Steeda MIL's about 3 days ago. What does this code mean and how do I go about fixing? I assume it has something to do with the MIL's, but usually when I get a code, it's for bank 1 or 2, not this.

replace the O2 sensor on the drivers side and ONLY buy Ford ones as the aftermarket ones will only cause you problems and since 1 is going south, best to replace both of them

w00t. That's the monkey.

Do you have LT's?

Yep. Full SLP exhaust with cats.

Thats why then. The 02's are taking longer to heat up, thats why its throwing the code. After awhile it went away on my car. I guess the computer learned it or something?

I went ahead and just cleared the code with the Xcal. It took 3 days after installing my MILs for this to come on. I've had my LT's for maybe 1.5 years though?

If I don't have an XCal2, I can just unhook my battery to clear codes, correct?

Yes, but it has to be unhooked for at least 15 minutes.

thanks bro.

You put the MIL's in the REAR 02's right, not the front ones.

Yeppers. After the Cats.

Im not sure why the code randomly came on like that then. It came on after my LT install, but went off not too soon after and hasnt come back on since. Maybe they are just going bad?

Well today's the third day since I reset it. It took three days to come on the first time, so we'll see if it comes on again anytime soon.