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Review on ACDelco AFS74 Original Equipment Heated by Justin Santiago

Revainrating 5 out of 5

The new sensor fixed my truck!

I have a 94 C1500 305 GM truck. Now I see that on his third O2 sensor they changed the design to a DENSO style O2 sensor. No complaints! When my truck ran horribly in closed loop, threw away the o2 sensor code, I figured after about 60,000 miles with the old ac delco replacement sensor it was time to replace it, which I did, fuel trim and performance with this o2 sensor is super! Easy fix, it only took a few minutes, I even have a youtube video [.]

Pros
  • Price
Cons
  • No power