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Guys I need help, I'm retarded.
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Guys I need help, I'm retarded.

My upstream O2 sensors were plugged in downstream because the idiot that I bought the headers off of welded a cap thread to the upstream bungs. I can't find any adapter that fits...

Do I just saw the bastard off or what, I don't have any welding tools...
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>>14203557
>upstream O2 sensors were plugged in downstream
wat
>>
>>14203557
The guy you bought them off has fucked you right up.
Cut them off and get proper bungs welded in.
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>>14203587

Yeah, like I said, I was retarded. I didn't realize it mattered if they were further back or not. Downstream O2s have been tuned out.

>>14203591

How do I cut it off?
>>
/o/ pls
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You will need something like a spark plug non fouler to weld into the pipe for your o2 sensor to screw into, welding is the only option really.
>>
if the sensor is before the cat its still upstream, that port is for emissions controls. headers commonly have the upstream bungs in the collectors so it is reading an average of all cylinders in that bank instead of getting data from one.
cmon guys
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>>14203557
>bung
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>>14203557
I personally go with TP for my Bungholes
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I have a feeling there is no "downstream" because the car OP bought has no cat.

If it's running correctly and you have no emissions requirement what's the problem Bro?
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>>14203680

Even if they are on each side? I have these.
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>>14203723

It's not running correctly. It's throwing O2 codes even though I put new sensors in and tuned out the downstream.
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>>14203730
Can you be more specific, what are the o2 sensors complaining about?
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>>14203730
Tune the upstream ones to where they don't throw codes or use spacers I guess. Is your fuel economy okay? Does your exhaust smell too rich?
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>>14203724
yep the ports in the primary tubes are for air injection and egr.

do you have a graphing or datastream capabhle scan tool? compare maf/map readings with o2 sensor voltage and stft. if it the engine is getting unmetered air (vacuum leak, leaking gasket in intake tract etc) the ecu might interpret this as a faulty o2 because the o2 sensor output is conflicting with the other sensors data and fuel map.
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>>14203815
fuckin' kids, can't figure out what upstream means, or how to thank someone
Thread replies: 16
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Thread DB ID: 404745



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