Oxygen sensor messing up

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Apr 2, 2009 | 09:51 AM

Ryans_pewter_ss

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Oxygen sensor messing up

I'm having a problem with my car, it feels like the plugs are fouled and has no power, the wideband goes to 16. It done it the other night after the dyno, my buddy took it and called and said they figured out it was the 02 sensor. He put a new one in and brought it home. Lastnight he drove it to my house and cut it off. It ran fine while he was driving it but as soon as i started it and started to drive off it done it again. He said its only doing it when it goes to open loop. Any ideas what it could be or what to check?

Apr 2, 2009 | 10:09 AM

NonGoggleGuy

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Huh? You put a new O2 sensor in and then cut it off later? Your write up is confusing.

Apr 2, 2009 | 10:37 AM

Ryans_pewter_ss

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Quote:

Originally Posted by NonGoggleGuy

Huh? You put a new O2 sensor in and then cut it off later? Your write up is confusing.

Sorry man, My buddy drove it from the dyno because i had to work. On the way home it lost power. He had a friend bring a scanner and it showed sensor data. They swapped the o2 sensor and it ran fine all the way to his house. He brought it to my house lastnight and it ran fine, he cut it off and we talked for about 15 minutes. I started it up and it was fine, backed down the driveway, went to 1st and it lost power again and wideband went to 16 and stayed. Feels like plugs fouled but there not.

Apr 2, 2009 | 10:56 AM

NonGoggleGuy

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Quote:

Originally Posted by Ryans_pewter_ss

They swapped the o2 sensor and it ran fine all the way to his house. He brought it to my house lastnight and it ran fine, he cut it off and we talked for about 15 minutes.

I must be missing something.

You installed a new O2 sensor. Got that.
Then you cut it off later?

Apr 2, 2009 | 10:59 AM

Ryans_pewter_ss

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no, cut the car off.

Apr 2, 2009 | 11:05 AM

NonGoggleGuy

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Oh, okay. Slang I'm not used to.

What work is done to the car? What did they do on the dyno?

Apr 2, 2009 | 11:13 AM

Ryans_pewter_ss

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Sorry man, I'm from the south. Its a 6.0, l92 heads, cam, nitrous. Didn't really change anything on the dyno. Just tuned it safe. It made 730hp and 738tq. Trying to think of what would made the o2 go bad. Think maybe it could be the other o2?