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#1
02-09-2005, 01:19 PM
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94 C280 check engine code (P0134: O2 Sensor); Regular gas (Octane 87) related?
Hi all,
Got the check engine light few days ago. Went to Autozone and borrowed a OBD2 scan tool, and the scanner says "P0134 O2 sensor CKT no activity (Bank 1 sensor 1)". Delete the code and the check engine light has NOT returned yet after 2 days (but only about 25 miles though). I use 89 Octane gas for about a year and started using 87 gas about 2 months ago when it gets cold in the winter. It did get a little bit warm (about 70F) last week and I was a little bit heavy footed. Do you think this problem is 87 Octane gas related? The car is 11 years old and has about 93K miles. The O2 sensors are still original. Thanks.
__________________
Harry (94 C280) 
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