High Voltage 02 sensor???
Thread Starter
TECH Resident
iTrader: (1)
Joined: Nov 2003
Posts: 891
Likes: 0
From: Pueblo, Colorado
High Voltage 02 sensor??? Well I went to get my car scanned today to see if i threw anymore codes. I had installed LTs, !cats, Custom Y, and I dont have my rear 02's plugged in. I just assumed the codes I was throwing was because of that. When I got it scanned it showed my 02's were "inactive" but the other code it showed was a high voltage 02. Is that normal? Or is one of my front 02s screwed up as well? Thanks in advance.
-David
-David
On The Tree
Joined: Mar 2004
Posts: 145
Likes: 0
From: NV
Looking at your O2 senors, are you seeing any switching with your scanner? If your are seeing switching but it's staying pretty high, you are running rich. The upper O2 sensors is all the PCM uses to tune it self. Your down stream O2 are only to see if your cats are working propler in removing NOX ( Nitrogens of Oxygen).
Thread Starter
TECH Resident
iTrader: (1)
Joined: Nov 2003
Posts: 891
Likes: 0
From: Pueblo, Colorado
Well I have my rear 02s removed. I went to autozone to get a scan just to see if my car was throwing a different code just to be on the safe side. Im not sure about the switching...Like I said...I just got a quick scan from az. Is this anything to be worried about?
The codes were: P0154 (Circuit Insufficient Activity) and P0152 (Circuit High Voltage)
The codes were: P0154 (Circuit Insufficient Activity) and P0152 (Circuit High Voltage)
