My SES light was on so I took it in for the free test. Both the left bank and right bank O2 sensors are bad. Any reason this might happen..the car has 15K on the clock. Now when my dad owned it he put in 89 octane.....for the last 1K I have had the car I put in 92-93. Would my dads crappy gas be the cause? The light has come on and off for the last few thousand miles. Just now came on when I was near an Auto Zone. Thanks for your help.

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1998 Camaro SS A4 #2,515 OF 3017
NBM w/ grey leather
T-tops, all GM options
MODS:
-SLP dual-dual (came with car)
-Hypertech 160 thermo

 

87/89/93 octane are all equally clean. Just different amounts of octane. I don't see how running 89 octane would make them go bad.

 

While 89 octaine ISNT good for our cars it really shouldnt have caused the problem.. but i have seen weirder tthings happen

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DaveD
1998 WS6 #207
-ARE Stage II Head/Cam
1998 Regal GS
-It Has Boost

The Phantom of CamaroZ28.com
Http://PhantomTA.cz28.com

 

Eh, I wouldn't worry about it. My O2 sensors went bad after 23,000 miles. Oh well, sh*t happens.

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Dennis

2000 Camaro SS
black, A4, tinted windows, stock for now