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Testpipe | Non Fouler poll

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Old 03-09-2006, 04:37 AM   #1
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Default Testpipe | Non Fouler poll


those running gutted cats or testpipes with non foulers. what setup are you exactly running?

Since there are different kinds of non foulers:

Short 18mm ones and Long 18mm ones. The short ones wont even accept the 02 sensor unless those are drilled out. The long foulers will accept the 02 sensor to a certain extend but wont thread all the way into the fouler.

Question now is: how are your foulers stacked?

SN = short fouler non drilled
SD = short fouler drilled
LN = long fouler non drilled
LD = long fouler drilled
02 = 02 sensor
TP = testpipe
code = errors saved
cel = Check engine light illuminated

also state your year and engine code

02 | LD | SN | testpipe | 00 atw = CEL
02 | LD | 00 atw = CEL
02 | LN | 00 atw = CEL
this would be my response as of today
02 | TP | 00 atw = CEL

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Old 03-09-2006, 05:07 AM   #2
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02 | LN | LN | Testpipe '00 ATW code... I plan on drilling it, soon (edited)
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Old 03-09-2006, 05:24 AM   #3
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they didn't work for me, back to a CAT ATW
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Old 03-09-2006, 05:31 AM   #4
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O2 - SD - SN - TP..... 1997 AEB....No codes ever, its been 8 months.
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Old 03-09-2006, 05:45 AM   #5
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02 | SN | SN | testpipe | 00 atw = code
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Old 03-09-2006, 05:49 AM   #6
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O2 | SD | SD | testpipe | AEB = no code ever
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Old 03-09-2006, 06:02 AM   #7
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Default I was just going to say, if you have probs then TP w/ NF might not work on ATW's or newer

We need another way to trick the ecu.
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Old 03-09-2006, 06:10 AM   #8
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Default 02 | LN | LD | Testpipe 00 ATW code=CEL every 200-300 miles

The CEL is sporadic and will go away after 50 or so miles of driving with it on. However my friend who also has a DBW car-but a 2001 does not get a CEL and has the exact same setup.
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Old 03-09-2006, 06:46 AM   #9
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O2 l SD l SN l gutted cat l '98.5 AEB l no code
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Old 03-09-2006, 06:48 AM   #10
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Default may be its an ATW problem then. I still haven't seen an ATW clear in the archives

unless I didn't check well enough.
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Old 03-09-2006, 07:06 AM   #11
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Default boo ya ka sha... anuver raeson why da early aye-fore is mo betta....

sorry i was having an Ali G moment.
big up yo-self!
Im sure ya geezers will sort out da ATW.
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Old 03-09-2006, 07:15 AM   #12
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I still haven't gotten a CEL, just the two codes.
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Old 03-09-2006, 07:39 AM   #13
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Default i searched around but couldnt figure out on some people which engines they are running

and how they have stacked the non foulers.

so lets keep peoplee posting their setups so we can "see" how others are running
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Old 03-09-2006, 08:10 AM   #14
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Default This Tech Section article is written for the 2.7T, but it seems like it should work fine for us

O2 Sensor Modification

It will probably work better for the 2000+ ECU than my 99.5 because don't both 2.7t and 1.8T DBW use Motronic 7?
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Old 03-09-2006, 08:22 AM   #15
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Default big up 2 all me homies! I hope we do, I have an inspection in April

time to register that car in the county that I have my other cars registered. I'm not even going to go into why I have different county regs.
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Old 03-09-2006, 08:22 AM   #16
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oh yea, miswrote that, I don't have cel's either, just codes.
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Old 03-09-2006, 08:30 AM   #17
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Default cobb co does not require emissions, right?

gwinnett does and in april i'm sol! i stripped my 02 sensor which i have now patched to the nonfoulers. i wouldn't have a problem putting in the cat instead of the tp but i can't take the sensor out lol.
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Old 03-09-2006, 08:32 AM   #18
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yea they do, Bartow doesn't. Oh man, that sucks. Take the VAG with you and clear right b4.
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Old 03-09-2006, 08:56 AM   #19
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Default haha that's my initial plan.

however, the car needs to cycle through so it can give proper emissions, which happens when the codes come on DOH! so you're doing the same thing?
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Old 03-09-2006, 09:10 AM   #20
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yup, I hope. I might try that resistor trick first though.
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Old 03-09-2006, 09:10 AM
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