oxygen sensor contamination

93GTDIN · 02-16-2003, 12:14 PM

My o2 sensors got pulled off yesterday and my mechanic said I was running so rich they were contaminated? Can running rich contaminate oxygen sensors in 6 months? The sensors were a dark black with black gook all over them, they looked pretty nasty, but i figure, they are in the exhaust. What do you guys think?

BilLster · 02-16-2003, 01:58 PM

yeah mine are light brown after a year but i had a oil leak that ruined a pair in under a week once .

i would be looking more at the black gook as oil .

do a compression check and look for leaking injectors just my .02 cents

02-16-2003, 12:14 PM	#1
93GTDIN Registered Member Join Date: Jan 2001 Location: Live music capital of the world, TX Posts: 324	oxygen sensor contamination My o2 sensors got pulled off yesterday and my mechanic said I was running so rich they were contaminated? Can running rich contaminate oxygen sensors in 6 months? The sensors were a dark black with black gook all over them, they looked pretty nasty, but i figure, they are in the exhaust. What do you guys think? __________________ 96 Cobra - a bit too stock. 14.0 @ 101

02-16-2003, 01:58 PM	#2
BilLster Registered Member Join Date: Oct 2000 Location: Ontario canada Posts: 446	yeah mine are light brown after a year but i had a oil leak that ruined a pair in under a week once . i would be looking more at the black gook as oil . do a compression check and look for leaking injectors just my .02 cents __________________ 89 with 331 t3'/t4 hybrids. upr Suspention worked out finnaly . 9.89 144 mph .

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