O2 sensor issue?
#1
O2 sensor issue?
Hi.
My 96 I30 has a bad gas mileages like 15 miles/gal.(premium). It was 20~21 mlies/gal. in the city after all of the O2 sensors were replaced about 3 months ago. So I guess the sensors is something wrong because the car has been showed to the same gas mileage before the sensors were replaced.
The two front sensors were from ebay by the bulk type which doesn't have terminal plug. It should be connected with old wire.
Are the sensors possible to be broken without any CEL?
Thanks.
My 96 I30 has a bad gas mileages like 15 miles/gal.(premium). It was 20~21 mlies/gal. in the city after all of the O2 sensors were replaced about 3 months ago. So I guess the sensors is something wrong because the car has been showed to the same gas mileage before the sensors were replaced.
The two front sensors were from ebay by the bulk type which doesn't have terminal plug. It should be connected with old wire.
Are the sensors possible to be broken without any CEL?
Thanks.
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