P0174 FYI - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

pnwdan · 09-13-2020, 08:43 PM

Had a P0174 pop up a couple days ago. I cleared it and a few days later it came back. I looked at my ST fuel trims and bank 2 was going +20/+30 indicating a severe lean while bank 1 was floating around zero. Lifted the car up to swap O2s left to right and found that I had hit my header on something while driving. The tube behind it and the clamp had slid back about an inch causing a slight leak. Loosened everything and fixed it all. Now the trims are almost identical. Just an FYI for you guys. Wouldn't have thought that a post O2 leak would do that.

09-13-2020, 08:43 PM	#1
pnwdan Drives: 2014 2SS/RS Join Date: Jan 2018 Location: Washington Posts: 848	P0174 FYI Had a P0174 pop up a couple days ago. I cleared it and a few days later it came back. I looked at my ST fuel trims and bank 2 was going +20/+30 indicating a severe lean while bank 1 was floating around zero. Lifted the car up to swap O2s left to right and found that I had hit my header on something while driving. The tube behind it and the clamp had slid back about an inch causing a slight leak. Loosened everything and fixed it all. Now the trims are almost identical. Just an FYI for you guys. Wouldn't have thought that a post O2 leak would do that. __________________ 2014 2SS/RS LS3/M6