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post #1 of 9 (permalink) Old 06-23-2011, 02:52 AM Thread Starter
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dtc code incorrect

Here's one for the logbook, bike shuts off on me today after sputtering and backfiring via intake (08 FLTR), after some time in the parking lot I decide to call AAA. Get it home and Google the dtc code P 0152. Of course it showed the proper fault, rear O2 sensor rich. sure enough, I go to dealer and drop 40+ on a new sensor, and install it, the old one was pretty black with soot, cleaning it did'nt help.
Niether did the new one being installed, I cleared the codes and disconnected the battery just as a precaution, but the bike still would barely start, and ran like crap just like before, so , on with the routine.....check plugs, etc.
I removed the air cleaner to inspect it and the throttlebody, and she runs like a champ now. It was the dirty air filter!!!!!!!! WTF??????


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post #2 of 9 (permalink) Old 06-23-2011, 07:27 AM
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I would not say the code ws wrong, if your air cleaner was so plugged the bike would not run right it most likely caused a rich condition which is what was reported by the ECM .

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post #3 of 9 (permalink) Old 06-23-2011, 08:41 AM
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just because your bike throws a code giving a specific fault, does not mean that that exact item is to blame. you could have gotten that same fault if you had a bad wire going to the o2 sensor. your ecm only knows that it is not getting the required signal from somewhere, not exactly why it is not getting that signal. you still have to troubleshoot.

your experience illustrates the need to go through all the simple stuff first, before throwing parts and money at your bike.

glad that you got your bike running good again.
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post #4 of 9 (permalink) Old 06-23-2011, 09:25 AM
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I would not say the code ws wrong, if your air cleaner was so plugged the bike would not run right it most likely caused a rich condition which is what was reported by the ECM .

Eagle
I agree 100%. The code reported that the rear cylinder war running rich which it was. The sensor was doing it job and there was nothing wrong with the sensor. When the sensor throws a code it does not mean that the sensor is "broken" it means that there is a condition that would cause the sensor to throw a code. Did you just buy the bike and the previous owner neglected the maintenance schedule or was it you that did not maintain your bike properly? You don't have to Google the codes the codes are available right here in the troubleshooting section you just have to look at the stickys.


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post #5 of 9 (permalink) Old 06-23-2011, 12:35 PM Thread Starter
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I agree 100%. The code reported that the rear cylinder war running rich which it was. The sensor was doing it job and there was nothing wrong with the sensor. When the sensor throws a code it does not mean that the sensor is "broken" it means that there is a condition that would cause the sensor to throw a code. Did you just buy the bike and the previous owner neglected the maintenance schedule or was it you that did not maintain your bike properly? You don't have to Google the codes the codes are available right here in the troubleshooting section you just have to look at the stickys.
This was all the kind of info I like have at my fingertips, thanks to everybody.
I wonder why the front cyl was fine though? I know the rear runs a little hotter, so wouldnt the front show a richer condition? And FYI, I bought the bike brand new and I do maintain it myself, having just done the 50k service. But this particular bike should have been lemon-lawed, since There has been a bevy of problems from the start. Too long a list for this post.


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post #6 of 9 (permalink) Old 06-23-2011, 05:04 PM Thread Starter
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This was all the kind of info I like have at my fingertips, thanks to everybody.
I wonder why the front cyl was fine though? I know the rear runs a little hotter, so wouldnt the front show a richer condition? And FYI, I bought the bike brand new and I do maintain it myself, having just done the 50k service. But this particular bike should have been lemon-lawed, since There has been a bevy of problems from the start. Too long a list for this post.
Well, it seems I was wrong....again. Took the damn thing out this morning, running fine, then as soon as I pull into a parking lot, she starts popping and spitting again, I got it home in the garage and now I have to start the diag all over again btw, no codes.....anybody have any suggestions? help!


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post #7 of 9 (permalink) Old 06-23-2011, 09:20 PM
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you might check your IAC and see if its plugged also .

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post #8 of 9 (permalink) Old 06-23-2011, 09:46 PM Thread Starter
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Thanks Eagle, it's all plugged in, I was going through things 1 by 1, when I got back to the screaming eagle plugs I ust put in 2k ago, I decided to try the old set just for giggles. Damn if she didnt start right up and run like a champ, again.
This time i let her run to temp and she was still running ok, no sputtering. I guess the next thing is to take her across town and see what happens.


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post #9 of 9 (permalink) Old 06-24-2011, 06:50 PM Thread Starter
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Thanks Eagle, it's all plugged in, I was going through things 1 by 1, when I got back to the screaming eagle plugs I ust put in 2k ago, I decided to try the old set just for giggles. Damn if she didnt start right up and run like a champ, again.
This time i let her run to temp and she was still running ok, no sputtering. I guess the next thing is to take her across town and see what happens.
Well, I put about 40 miles on her around town, stopped and bought some oem plugs, tossing the screaming a-hole plugs. so far, its good.


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