Hey guys,

So, in the ever continuing saga that is my 02 sensor situation, I have a question. To make a long story short though, first, I installed a ZZP header/dp awhile back, and it's been downhill since then. The system has since been replaced with a stock system, but will eventually go back to an aftermarket one.

So, the car threw a few random codes at first. Replaced a few fuses and it was fixed. Then the CEL still came on a little while after. Something about a cylinder miss. The car has new AC Iridum plugs, a new Bosch front 02 and a hair over 60k on it. The dealership said my rear 02 sensor wiring was damaged, thus letting it not read right. I heard you can re-wire it to a point, but I was between a few ideas..

1) just do a diy re-wire if possible

2) buy and swap a new rear 02 (probably almost another 100 bucks)

3) get HPT and do the "rear 02 delete"

Will doing the rear 02 delete fix my issue? Or should I not do that since I am still (and always will) running a cat. The car sounded HORRID sans cat. Regardless, do those or just patch the wiring? I mean, the DIY is the cheapest, but also probably moderate at best. Getting a new one will likely be the best action, but I plan on doing HPT anyway, so I will just be wasting 100 on another sensor if I buy one just to delete it. Is deleting the rear 02 safe? Will it still run ok and pass inspection? How much is a rear 02 if I buy it? I got my front one from Advance for like 110. The rear is cheaper I heard..

Also, these are the codes it's throwing currently. They didn't write down what they meant though..

1175

P0171

Thanks!!

Anyone..??