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02 sensor?

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Old 10-26-2005, 07:05 PM
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02 sensor?
what are the chances on a bad 02 sensor no cel?
if is bad or runing rich/lean does it always trigers cel?
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Old 10-26-2005, 07:09 PM
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A lazy O2 sensor may not trigger the CEL, but you have more problems than just a lazy O2 sensor if you are getting 10mpg (from your other thread).
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Old 10-26-2005, 07:11 PM
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i dont know what to start from ? this $3.00+ a gal is killing me big time
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Old 10-26-2005, 07:22 PM
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It's a little difficult to track what has been suggested and tried so far since you started a new thread... but are there any codes stored in the ECU? Did you go to Autozone and have them retrieve the codes?
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Old 10-26-2005, 07:30 PM
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no codes i had a problem with egr but i got that fixed my mechanic told me i am using so much gas bc my egr wasnt working now i got that fixed still same problem time that i had problem with egr after reseting ecu cel would come up after like 10 min of driving now i am driving for like a week no cel
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Old 10-26-2005, 07:38 PM
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Try to test your mileage in the city vs the hwy. Your hwy mileage if you are cruising around 60-65 should be almost 30mpg. If that is the case, but your city mileage is low(10-18) then you might have lazy o2 sensors. The sensors aren't sending the right info to the ecu until they have been running a while. Thus bad MPG. I changed mine for that reason and restored my overall mileage to 25 including city driving. JMHO
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Old 10-26-2005, 07:46 PM
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is there a way to test them ?
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Old 10-27-2005, 01:50 AM
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well i had 05 03 right bank o2 sensor for almost a year, and then when I got around to replacing it i rechecked the codes and it was gone ? i replaced it anyway but had no explanation as to why the codes no longer showed.
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Old 10-27-2005, 05:15 AM
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i see but is there like a way to check them some how
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Old 10-27-2005, 05:34 AM
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If you have 100k miles on your sensors, it probably time to change them!!
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Old 10-27-2005, 05:43 AM
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i had front right one and back sensor changed only left one is old well i dont know how old i only have this car for like 2 1/2 years so i dont know
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Old 10-27-2005, 05:45 AM
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How many miles on your 96?
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Old 10-27-2005, 05:48 AM
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The rear o2 sensor doesn't affect your mileage. The 2 front sensors will give you bad mileage if old. I would just change the other front o2 sensor and start fresh!! Gas is expensive.
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Old 10-27-2005, 05:48 AM
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about 122k
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Old 10-27-2005, 05:51 AM
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thanx i'll do that
o and one more thing is there a big diff oem or aftermarket 02
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Old 10-27-2005, 07:28 AM
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Originally Posted by S103100F
thanx i'll do that
o and one more thing is there a big diff oem or aftermarket 02
get a Bosch OEM equivalent from www.oxygensensors.com - $70
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Old 10-27-2005, 12:39 PM
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thats each right
how about from dealership how much they go for?
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Old 10-27-2005, 12:40 PM
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Originally Posted by S103100F
thats each right
how about from dealership how much they go for?
yes, 70 bucks each, as opposed to 120-180 depending on which dealer you go to (online, local, etc.).
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