I got tired of the sqealing of my belt and I replaced both the serpentine belt and the accessory belt with goodyear gatorbacks. Let me tell you, it was a world of difference. No sound what so ever. Anyways, the next day driving, I got a code 0133. I deleted the code, but was wondering If i should worry about it. The car acted perfectly fine with no issues. I think I remember deleting the o2 sensor when installing the LT headers. Just wondering if I should check for anything?!? Any info would help. Thanks

 

P0133 if Driver's side pre-cat O2 sensor. No way you would delete that when installing LT's, unless you had your PCM reprogrammed to run in open loop? Did you do that?

The code indicates "slow response" from the sensor, and 9 times out of 10 its a worn out or contaminated sensor. The PCM needs it to control the engine's A/F ratio..... unless you've had the PCM set to operate in open loop.

 

I had Doc from ls1tech program my pcm using his program. (Efi Live) I emailed him to ask about the open loop. So, I just need to replace the o2 sensors in the front? And while I am there, should I just replace both of them? Also, would changing my belts have anything to do with this, or was this just a coincidence? Thanks

 

I Have The Same Problem Of The Squaling Part.....I Do Not Know Wat It Is.....People Tell Me It's A Belt But Other People Tell Me It's A Pulley.....Any Help

 

I would try the goodyear gatorback belts first, found at most autozones. Its was around $45 for both belts and took 10 mins and 1 tool. It completly got rid of the noise. It may work in your case, but if it doesent you will have to figure out which pully is doing it and replace it.