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X-Post from the A6/C5 Forum - Which O2 Sensor Simulator do I need? LanceEagle are you out there?

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Old Jan 6, 2006 | 08:36 AM
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Default X-Post from the A6/C5 Forum - Which O2 Sensor Simulator do I need? LanceEagle are you out there?

I plan to replace my Magna Flow High Flow Cats with the test pipes provided by LabRee and I understand that I'll need O2 Sensor Simulators to avoid a CEL. My question is, which kit(s) do I need? I can't tell from Baker's web site whether I need just the set for the test pipes or will I need something else. I see from LanceEagle's post that he used
"2 PSO2SIM's and 2 O2 Sensor Heater Simulating Resistors". Do I need the same set up? Thanks in advance for the help. I eagerly await this Forum's response(s).<ul><li><a href="https://forums.audiworld.com/s4/msgs/2147570.phtml">Baker Electronics</a></li></ul>
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Old Jan 6, 2006 | 08:55 AM
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Put your secondary o2 sensors behind a spark plug foulers.
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Old Jan 6, 2006 | 09:00 AM
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Thanks. But which ones do I order?
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Old Jan 6, 2006 | 09:01 AM
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I don't see any reason it'd be any different on an A6, but take that FWIW
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Old Jan 6, 2006 | 09:12 AM
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Default Me neither except for any differences in his specific set-up. If his set-up is for just

replacing his high flow cats with a test pipe like I plan to do, then I'd have the same parts installed.
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Old Jan 6, 2006 | 05:15 PM
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18mm spark plug foulers, $6.99 for two at most auto parts stores.
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Old Jan 6, 2006 | 08:17 PM
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Perfect. Thanks.
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Old Jan 10, 2006 | 01:37 PM
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Default Re: X-Post from the A6/C5 Forum - Which O2 Sensor Simulator do I need? LanceEagle are you out there?

Are you guys convinced that the plug fouler solution will work on the S4? You are masking off the secondary sensors. I believe the ECU is expecting reasonable and varying signals from the O2 sensors and it compares them. I remember seeing some data in the VAG output pointing to out of range comparisions. I'll recheck after my PSO2SIM's
get here and installed. I believe that you have to electronicly make the ECU happy, or you will go into Limp mode. That's not worth the few bucks saved. I'll see if I can get an answer to this.
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Old Jan 12, 2006 | 12:09 PM
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Default Yes you'll need 2 PSO2SIM's to simulate your O2 sensors and

2 O2 Sensor Heater Simulating Resistors to simulate your O2 Sensor Heaters.

You can leave your original O2s connected to their harness' if their heaters are working fine and just not buy/hook up the Heater Simulating Resistors.

For me, I wanted those O2 Sensors gone so I replaced it all.

If you have any other Q's for me feel free to mail me directly. I don't troll a whole lot on here
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