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Front and Rear O2 Sensors

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Old Sep 14, 2011 | 10:07 AM
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Wink Front and Rear O2 Sensors

The DTCs for my 2007 Springer with the 103 kit are: P132-0 and P152-0 indicating Front O2 Sensor High and Rear O2 Sensor High, respectively. My local dealer wants to spend an hour on diagnosis, at the cost of $90.

Because I don't have HD service manuals, and prefer not to spend this kind of money simply to diagnose a problem, I wonder if anyone has a series of steps I can take to possibly identify the cause of these DTC codes.

I don't want to remove and replace the O2 sensors without knowing the cause of these codes and the reason my bike simply stopped running while I was riding ... the symptom is similar to a fuel vapor lock but after coasting to a stop and powering off/on, the bike ran again.

I have some basic hardware tools (wrenches, sockets, etc.) but no diagnosis tools.

Thanks for any and all help.
 
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Old Sep 14, 2011 | 12:04 PM
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If you don't want to spend the $60.00 for a manual so you can do most of your work yourself, then pay the dealer.
 
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Old Sep 14, 2011 | 12:09 PM
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O2 sensors reading high indicates a lean condition. You'll need a service manual and some basic knowledge of EFI to nail down the cause. Could be a problem with the fuel pump, could be the TPS. could be the MAP sensor.

A fuel pressure gauge is fairly cheap, the TPS can be tested with an ohm meter.
 

Last edited by pnw_hd_rider; Sep 14, 2011 at 08:46 PM.
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Old Sep 14, 2011 | 01:54 PM
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Thanks to both. For the short term, I'll head to the dealer. For the longer term, I'll invest in a manual and learn some basic knowledge of EFI and other HD systems.
 
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Old Sep 14, 2011 | 02:20 PM
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Is there an inline fuel filter? If so, I'd check that first.
 
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Old Sep 14, 2011 | 02:42 PM
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Originally Posted by Tracker56
If you don't want to spend the $60.00 for a manual so you can do most of your work yourself, then pay the dealer.
If you don't want to offer any real help, don't type.
 
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Old Sep 14, 2011 | 02:44 PM
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Fast Fac - Have you don't any exhaust/intake mod? Fuel Tuner? Any of that stuff? Or are you running stock intake/exhaust/fuel mapping/etc.?
 
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Old Sep 14, 2011 | 02:49 PM
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when i saw the 103 kit a fuel tuner is the first thing that came to my mind, engine work,pipes and a/c = lean running engine if you dont add a tuner.
 
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Old Sep 14, 2011 | 03:13 PM
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Originally Posted by mke125125
when i saw the 103 kit a fuel tuner is the first thing that came to my mind, engine work,pipes and a/c = lean running engine if you dont add a tuner.
Good point. I assumed that it was running properly before the problem arose.

Originally Posted by Fast Fac
I don't want to remove and replace the O2 sensors without knowing the cause of these codes and the reason my bike simply stopped running while I was riding ... the symptom is similar to a fuel vapor lock but after coasting to a stop and powering off/on, the bike ran again.
Was this a normal ride (was it running properly before this happened) or a test ride after doing the 103 build? When you say "the bike ran again", how long/far/fast did you run it afterwards?
 
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Old Sep 14, 2011 | 03:34 PM
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Originally Posted by mke125125
when i saw the 103 kit a fuel tuner is the first thing that came to my mind, engine work,pipes and a/c = lean running engine if you dont add a tuner.
If he didn't have the tuner, then it would run like **** but I don't think it would cause the engine to shut down.
 
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