Hey guys, I've got a 99 EX 4cyl with the check engine light on. My wife took it in for inspection last week and the shop told her it was the oxygen sensor, but they did not say whether it was front or back. Is there one that goes out more often or sooner than the other? The car has 160,000+ on it if that helps.

Thanks!

 

No. The difference is what specific error code you get. Go to someplace like AutoXone - most of them will read the code for free. Get the actual code number, not just the guy's description.