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Kodak · 08-10-2011, 11:37 AM

The 04 Impala is throwing a code for a bad O2 sensor, but we're not sure which one. This vehicle has 4 of them.

Is there a DIY method of determining which one is having problems?

Thanks for the help.

08-10-2011, 11:37 AM	#1 (permalink)
Kodak Master EcoModder Join Date: Feb 2011 Location: USA Posts: 346 Canyon - '07 GMC Canyon 2wd regular cab 90 day: 24.95 mpg (US) Thanks: 41 Thanked 39 Times in 24 Posts	Which O2 sensor The 04 Impala is throwing a code for a bad O2 sensor, but we're not sure which one. This vehicle has 4 of them. Is there a DIY method of determining which one is having problems? Thanks for the help. __________________ EcoDriving: Turning more fuel into usable forward motion.