Suspect O2 Sensor Bad

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Sep 9, 2003 | 02:08 PM

CAJUN C4

Thread Starter

Safety Car

Joined: Feb 2000

Posts: 3,771

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From: MANDEVILLE, LA La

Suspect O2 Sensor Bad

Anyone have an Oxygen Sensor go out.? What were your symptoms, codes set etc.

Sep 9, 2003 | 03:05 PM

65Z01

Team Owner

Joined: Dec 2000

Posts: 90,675

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From: SE NY

Cruise-In II Veteran

Re: Suspect O2 Sensor Bad (CAJUN C4)

A faulty O2 sensor can throw a code 13.

To see if your ECM is going and staying in closed loop, use the method on my site (link in my sig. below). If all is ok then both the O2 sensor and the coolant temp sensor are fine.

Sep 9, 2003 | 03:11 PM

Fast_vette89

Pro

Joined: Oct 2002

Posts: 638

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From: tampa fl

Re: Suspect O2 Sensor Bad (65Z01)

To all fellow 1 wire sorry azz o2 equipped sensor guys. GO TO A 3 or even better 4 wire sensor. :)

Sep 9, 2003 | 05:49 PM

6spd

Burning Brakes

Joined: Jun 2003

Posts: 949

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From: smithtown ny

Re: Suspect O2 Sensor Bad (Fast_vette89)

i second that

Sep 9, 2003 | 05:50 PM

scorp508

Team Owner

Joined: Mar 2000

Posts: 83,381

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From: Boston, MA

Re: Suspect O2 Sensor Bad (6spd)

Put your foor to the floor. If car seems ok then, O2 sensor is bad. (O2 sensor is ignored in WOT mode)

Sep 9, 2003 | 06:47 PM

Corvettaholic

Instructor

Joined: Jun 2003

Posts: 200

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From: Tempe AZ

Re: Suspect O2 Sensor Bad (scorp508)

does an 85 have one or two O2 sensors? i see one on the drivers side manifold plenty fine, but I haven't looked for the other one. I had my mechanic replace one (i think there is only one) and ever since then i've gotten atrocious gas mileage and part-throttle problems. maybe he dropped it...

Sep 9, 2003 | 11:14 PM

Sam Lam

Melting Slicks

Joined: Apr 2002

Posts: 2,118

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From: St. Charles, MO Route 66 Corvette Club

Re: Suspect O2 Sensor Bad (Corvettaholic)

My 89 L98 has one oxygen sensor and this is located on the drivers side of the exhaust manifold. The O2 sensor should be changed out at 40000 miles for best performance. Did your mechanic replace the sensor with a GM part? I have tried aftermarket parts for emissions and have not had good luck with them. My best results have been when using OEM parts. Hope this is helpful!