can top o2 sensor be replace with wideband o2?

[drewski1990]

CEL has came on for awhile now and never had the time to get to it. I forgot the code, but saids engine is running lean. Could be the 02 sensor, but unsure of which one yet. Since my wideband is aldy equipped with a brand new o2 sensor, could that directly replace the top one (on the exhaust manifold)? The new o2 will be installed on the Jpipe, but if the wideband sensor goes into the same location on the ecu as the top sensor, then theres no need for two sensors correct? If this takes care of the CEL, then great but if not, then at least I'll know its the bottom one that needs replace. Im not sure of the connections to the ecu, your advice will be greatly appreciated. Thanks.

 

[IshSonP5]

if you're throwing a cel that says you are running lean, how did you determine it was an 02 error..? I would check other areas before going that route, and I would do it soon.

 

[tweety2300]

Depends on the wideband, some of them do have a narrow band signal wire to go to the ecu

 

[drewski1990]

if you're throwing a cel that says you are running lean, how did you determine it was an 02 error..? I would check other areas before going that route, and I would do it soon.

you're absolutely right, it could be something else. I just thought I would first troubleshoot the o2 sensor since I have a new one. I am just unsure on its connection with the existing sensor. I have a feeling that it has its own route to the ecu that cannot replace the top o2 sensor.

 

[drewski1990]

Depends on the wideband, some of them do have a narrow band signal wire to go to the ecu

I have the innovative wideband, do you have experience on the wire up?

 

[Dcmason22]

Ha this is funny. I'm having the same exact issue and was looking into this this morning. The code I got was p0131 - low voltage o2 (low voltage means lean, high voltage mean rich). After taking to my mechanic at work, he also said that it was the upstream o2 sensor (the one closest to the block). He said "with your car being 10 years old, you probably could you a new one regardless." I have the AEM uegeo wideband and believe it does have narrow band as well (could be mistaken).

I'd try finding out if your Innovative wideband has narrowband also. Then see what happens. It may just work.

 

[tweety2300]

My aem has a wire for narrow band and another one for data logging. Just make sure to use the right wire

 

[Dcmason22]

What did you do with the factory o2 sensor and wiring? Are you using both the factory and the wideband?

 

[destineal]

What AEM uego has a narrowband function?

 

[Dcmason22]

What AEM uego has a narrowband function?

I did say that I could be mistaken and it doesn't. I was wrong.

 

[drewski1990]

Ha this is funny. I'm having the same exact issue and was looking into this this morning. The code I got was p0131 - low voltage o2 (low voltage means lean, high voltage mean rich). After taking to my mechanic at work, he also said that it was the upstream o2 sensor (the one closest to the block). He said "with your car being 10 years old, you probably could you a new one regardless." I have the AEM uegeo wideband and believe it does have narrow band as well (could be mistaken).

I'd try finding out if your Innovative wideband has narrowband also. Then see what happens. It may just work.

How do u tell if it has the narrowband or not? Is it wired differently? I thought the difference between wide vs narrow is its capability of reading outside 14.7 and datalog.

 

[Dcmason22]

How do u tell if it has the narrowband or not? Is it wired differently? I thought the difference between wide vs narrow is its capability of reading outside 14.7 and datalog.

Your factory o2 sensor is a narrowband. The reason a wideband is so helpful is that it give you a reading from 0-5 volts whereas a narrowband is only 0-1volt. Both sensors will read .1 of a volt, giving you 10 possible outputs on a narrowband and 50 possible outputs on a wideband. So, You'll get a more precise reading of your afr's (which typically includes reading outside of 14.7 and having datalogging capabilities). At least that's the way I understand it. I've been wrong before (as proven on an earlier comment).

 

[alazare619]

I too am interested in this the Wideband I'm looking into is a bosch lsu 4.9 wideband If anyone knows if this is capable of outputing as both wide and narrow band I would greatly appreciate any feedback.

 

[drewski1990]

Your factory o2 sensor is a narrowband. The reason a wideband is so helpful is that it give you a reading from 0-5 volts whereas a narrowband is only 0-1volt. Both sensors will read .1 of a volt, giving you 10 possible outputs on a narrowband and 50 possible outputs on a wideband. So, You'll get a more precise reading of your afr's (which typically includes reading outside of 14.7 and having datalogging capabilities). At least that's the way I understand it. I've been wrong before (as proven on an earlier comment).

What do u suggest the best way to find out if the wideband also has narrowband setup? Wiring diagram?

 

[tweety2300]

I know on mine it has the clip for the sensor then it has a seperate clip for the power and ground, with the clip for power and ground wires i have one for data log and one for narrowband

 

[drewski1990]

I know on mine it has the clip for the sensor then it has a seperate clip for the power and ground, with the clip for power and ground wires i have one for data log and one for narrowband

I'll double check on mine. So back with the original question, could it replace the oem sensor tho because now its after the turbo vs before? It's in a different location, dont know if that would alter anything or mess up the programs within the factory settings. Just wondering if anyone has done it without problems.

 

[alazare619]

If the sensor says narrow band logging is that the one you would hookup to the ecu? the bosch lsu 4.9 states it has 0-1v data logging which is the same volts a narrow band uses the "data logging" concerns me tho I dont want to fry my ecu :S

 

[alazare619]

If the sensor says narrow band logging is that the one you would hookup to the ecu? the bosch lsu 4.9 states it has 0-1v data logging which is the same volts a narrow band uses the "data logging" concerns me tho I dont want to fry my ecu :S

Linear Data Logging Outputs:
Linear Narrowband Output: 0 to 1 Volt
Linear Wideband Output: 0 to 5 Volts

straight from bosch's info on the lsu 4.9

 

[tweety2300]

If youre this worried about it just pay a shop $15 to weld in a bung and get a new sensor

 

[Dcmason22]

Linear Data Logging Outputs:
Linear Narrowband Output: 0 to 1 Volt
Linear Wideband Output: 0 to 5 Volts

straight from bosch's info on the lsu 4.9

Thanks. That what I was saying earlier.

Also, the wideband should be placed after the turbo (which is why you want an extra bung on your DP). Wideband cannot replace your factory narrowband sensor because it doesn't connect directly to the ECU.