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02-05-2007, 03:07 PM | #1 |
Scooby Newbie
Member#: 21613
Join Date: Jul 2002
Vehicle:2002 wrx midnight pearl black |
how to change exhaust temp sensor?
CEL code leads me to exhaust temp sensor having gone bad.
I want to change it vs doing the resistor "fix". I have helix aftermarket up/down pipe. Anybody have any suggestions on the easiest way to change it out? I can't quite get a 14mm wrench in there w/out removing anything i don't think, without stripping the nut... the service manuals suggest you remove a whole BUNCH of stuff which i would rather avoid if anybody has any tips. thanks
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02-05-2007, 03:14 PM | #2 |
Scooby Specialist
Member#: 53665
Join Date: Jan 2004
Chapter/Region:
NESIC
Location: Northboro, MA
Vehicle:2022 BMW M240i Thundernight |
You can't get to it without removing all kinds of things.
Just do the resistor fix especially since you don't have a CAT in your uppipe anymore. The sole purpose of that EGT probe is to monitor the health of the CAT in the UP. Now that it is gone, that probe is useless. It helps nothing so all you will do is spend money on something that does not help you and will just cause you lots of aggrivation. |
02-05-2007, 03:31 PM | #3 |
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Vehicle:2003 WRX WRB 2006 LGT Silver |
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02-05-2007, 03:47 PM | #4 |
Scooby Specialist
Member#: 124282
Join Date: Aug 2006
Chapter/Region:
NWIC
Location: 30000 ft
Vehicle:04 WRX Wagon PSM 13 STI Sedan SWP |
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02-05-2007, 03:50 PM | #5 |
Scooby Specialist
Member#: 53665
Join Date: Jan 2004
Chapter/Region:
NESIC
Location: Northboro, MA
Vehicle:2022 BMW M240i Thundernight |
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02-05-2007, 03:53 PM | #6 |
Scooby Newbie
Member#: 21613
Join Date: Jul 2002
Vehicle:2002 wrx midnight pearl black |
haha! no, i'm pretty sure that didn't happen. the CEL isn't on 100***37; of the time. it just comes on occasionally, under moderate load, so the sensor must stil lbe there. If it's not needed at all I wonder why they are left in at all by the guys who tuned my car...
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02-05-2007, 03:59 PM | #7 | |
Scooby Specialist
Member#: 124282
Join Date: Aug 2006
Chapter/Region:
NWIC
Location: 30000 ft
Vehicle:04 WRX Wagon PSM 13 STI Sedan SWP |
Quote:
Have you logged EGT's? If they left it, it's probably because they are inattentive. Many/some tuners do not care to take the time to pay attention to small things such as the EGT sensor, rear O2 sensor CEL's, etc. They may have had a valid reason though, it might be worth asking. |
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02-05-2007, 08:15 PM | #8 |
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Location: Gilbert, AZ
Vehicle:2009 G8 GT Cammed, sprayed, stalled |
I had this same thing happen on my '02. I had a TurboXS catless UP and left the sensor in. About 40k later, I started getting the codes periodically and then more regularly. I changed the sensor and I was able to do it without removing much. It is a little tricky but can be done. You do have to remove the bracket on the coil paks because the wire snaps into that. Use a brake line wrench so you do not round the nut off. It may also be easier if you remove the top turbo heat shield.
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02-05-2007, 08:36 PM | #9 |
Scooby Newbie
Member#: 125129
Join Date: Sep 2006
Chapter/Region:
Tri-State
Location: NY
Vehicle:2004 WRX VF34'd Silver |
They probably left it in there so as not to be bothered finding a bolt/washer to plug off the hole. Either way, it is better for you to plug the hole with a bolt/washer and do the CEL fix, it is safer. As for getting a wrench on it, since it's being replaced by whatever you decide to do you can cut the wires so you can use the angled and enclosed end of the wrench which will probably give you more options for removal. As a last resort before actually pulling the UP off, you might be able to pick up a single ratcheting wrench in that size(14mm is it?) with a flex head or maybe use a stubby?
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