O2 sensors - ZR-1 Net Registry Forums

831hp · 07-10-2005

I have removed my O2 sensors and found 1 to be light brown in color, the other to be black soot coverd in color. What would cause this? Possibly a leaking injector or could it be oil leakage from the manifold bolts and leaking into the exhaust stream? or something else? I need some input on this one.

Z Factor · 07-12-2005

Quote:

Originally Posted by 831hp

I have removed my O2 sensors and found 1 to be light brown in color, the other to be black soot coverd in color. What would cause this? Possibly a leaking injector or could it be oil leakage from the manifold bolts and leaking into the exhaust stream? or something else? I need some input on this one.

Hello, and welcome to the forum.

My guess would be a leaky injector, but hopefully someone else will be along to offer a more definitive opinion.

07-10-2005	#1
831hp Join Date: Jul 2005 Location: Phoenix,AZ. Posts: 1	O2 sensors I have removed my O2 sensors and found 1 to be light brown in color, the other to be black soot coverd in color. What would cause this? Possibly a leaking injector or could it be oil leakage from the manifold bolts and leaking into the exhaust stream? or something else? I need some input on this one.