Sexymeatball
New Member
what are the symptoms of bad o2 sensors? I have no idea if mine are stock but my assumption is that they are. thanks for your help.
bad o2 sensors?
- Thread starter Sexymeatball
- Start date
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sdpatt
Sr. SHO Engr.
1. CHECK ENGINE light with one O2 sensor code (not both sensors).
2. Poor gas mileage.
3. Emissions test failure.
4. O2 sensors with more than 60,000 miles on them.
2. Poor gas mileage.
3. Emissions test failure.
4. O2 sensors with more than 60,000 miles on them.
Sexymeatball
New Member
well i am guilty of at numbers 2 and 3 and most likely 4 as well. Since i will be replacing my y-pipe at some point soon ill go ahead and do the o2 sensors as well. It cant hurt right?
GHOST94ATX
New Member
Check Engine Light
Any one with any experience with this situation?
Check engine light comes on when car is driven hard (aggressive exceleration or driving over a mountain pass)
I can't get the (engine off-key on) codes to scan into the scanner. So with the M.I.L. (manual indicator light) method, I get some jiberous codes and then get codes 17, 43 and 65 to repeat.
17 - idle rpm low with ISC off
43 - HEGO lean at wide open throttle
65 -never went into closed loop fuel control
I'm thinking all three of these are related to the HEGO (heated o2 sensor) I replaced the o2 sensor about 3,500 miles ago and it's been acting this way about a 1000 miles into the new sensor installation. Maybe I got a bad one? I've been told that with a bad o2 sensor, the computer runs the fuel loop in a 'limp' mode. Maybe that's what driving codes 17 and 65?
If anybody has run into this situation, I'd appreciate it if you could respond with what solved your problem. I'm replacing the o2 sensor and am hoping that will solve the issue. I purchased the car with this problem pre-existing, so I'm unsure of the past history with the o2 sensor.
Thanks
Any one with any experience with this situation?
Check engine light comes on when car is driven hard (aggressive exceleration or driving over a mountain pass)
I can't get the (engine off-key on) codes to scan into the scanner. So with the M.I.L. (manual indicator light) method, I get some jiberous codes and then get codes 17, 43 and 65 to repeat.
17 - idle rpm low with ISC off
43 - HEGO lean at wide open throttle
65 -never went into closed loop fuel control
I'm thinking all three of these are related to the HEGO (heated o2 sensor) I replaced the o2 sensor about 3,500 miles ago and it's been acting this way about a 1000 miles into the new sensor installation. Maybe I got a bad one? I've been told that with a bad o2 sensor, the computer runs the fuel loop in a 'limp' mode. Maybe that's what driving codes 17 and 65?
If anybody has run into this situation, I'd appreciate it if you could respond with what solved your problem. I'm replacing the o2 sensor and am hoping that will solve the issue. I purchased the car with this problem pre-existing, so I'm unsure of the past history with the o2 sensor.
Thanks
