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Trouble codes

Tiny
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  • 2000 BMW Z3
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
Why does my 2000 BMW Z3 roaster have Trouble codes 1397,1100, and 0004?

I have a 2000 BMW Z3 roadster 2.8 v6 that had a hole in the air pressure hose. The service engine soon light turned on and I had an idle surge. So I looked in my manual and it says that the service engine light is when there is a fault in the emissions. Since I had a idle surge I figured that I had a cracked hose. SO I looked and found the air pressure hose had a hole so I replaced it. The light turned off so I figured that was it. After a day the light turned on again. I checked for codes and got the 1397,1100, and 0004. Where these codes related to my air leak? Or do I have more problems and it these don't relate how and what do I test to find the reason for these codes?
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Saturday, January 1st, 2011 AT 4:58 PM

18 Replies

Tiny
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For my code 1100 MAF sensor intermittent. Would cleaning fix this code? I figured I got this code because it was dirty and not work like it should.
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Saturday, January 1st, 2011 AT 5:04 PM
Tiny
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Its actually an inline six, BMW never made a V6. Which hose did you replace? What method did you use to extract the fault codes?
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Saturday, January 1st, 2011 AT 5:45 PM
Tiny
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Either way its still a 6 cylinder that aside.I stated already that it is the air pressure hose. I used a code reader.
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Sunday, January 2nd, 2011 AT 3:09 AM
Tiny
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The ambiguous nature of generically generated fault codes makes it practically impossible to have any real meaning when dealing with BMW. https://www.2carpros.com/trouble_codes/obd2 Here is the fault code table that is generated from the site. Two of them are not listed and BMW does not use a manifold absolute pressure sensor on that model. Can you tell me the part number of the part that was replaced, air pressure hose is not a description that has meaning. I prefer to have the scan done with the proprietary BMW scan tool called a GT-1, you may need to seek out someone with the scan tool to figure out what is going on here.
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Sunday, January 2nd, 2011 AT 2:02 PM
Tiny
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When you go to the BMW Dealership and go to parts. When you look up emissions. There is a hose that goes to your purge tank and goes to what is the egr (but BMW calls it something else can't remember) that hose is called a air pressure hose. That's the name that BMW gave it. Google it and you will find the hose. Code p1397 Camshaft Position Sensor "B" Circuit (Bank 1). I'm told there are two. One on the intake and one on the exhaust. Yea i'll try another scanner. But for the 1397 how can I test the sensors? Or do you just replace them?
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Sunday, January 2nd, 2011 AT 4:52 PM
Tiny
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The sensors are hall effect sensors and testing them is inconclusive. Usually the faults that occur is what BMW calls plausibility faults, this can mean that the sensor has failed and/or is intermittent. This where the generic scanner falls down, it does not distinguish which sensor is inoperative, replacement of the both of them is a possibility, but there isn't a good reason to replace them both if only one has failed. The failure rate of the intake and the exhaust sensors is about the same so I can't give you a "go ahead and replace the. Sensor" because I just don't know. I am going to assume the air hose is for the cyclone separator. Realoem. Com has a groovy exploded view of the hoses. Go to the site and put in this part number 11617533400 This will show the separator and attached hoses, let me know if this is right and if it is, which hose we are dealing with.
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Sunday, January 2nd, 2011 AT 6:20 PM
Tiny
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Go to this website the picture of the hose is the same as the hose i replaced.

http://www.autopartswarehouse.com/details/QQBMWQQZ3QQOES_GenuineQQAir_Pump_HoseQQ1998QQW0133-1808235.html?apwcid=P1135867996W43b3f85c7ab9e&apwid7ZP4SO2
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Sunday, January 2nd, 2011 AT 10:29 PM
Tiny
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The part number for the hose from BMW is 11721437884
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Sunday, January 2nd, 2011 AT 10:42 PM
Tiny
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The secondary air pump, that's what the pump is named. It is for quicker starts for the cats.
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Sunday, January 2nd, 2011 AT 11:08 PM
Tiny
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Ok so now what?
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Sunday, January 2nd, 2011 AT 11:10 PM
Tiny
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What do we do now? Is that your question? What are you going to do about the failed sensor, since we don't know if it is exhaust or intake. The replacement of the secondary air hose will allow the monitor to run if the rest of the secondary air injection is functioning correctly. So the check engine light will probably come back on for the cam sensor, I'd say it's your turn, what is next?
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Sunday, January 2nd, 2011 AT 11:24 PM
Tiny
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Sounds like a plan if I find anything i'll let you know
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Sunday, January 2nd, 2011 AT 11:44 PM
Tiny
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I was told that it is either my exhaust cam sensor or its my vanos. How can I tell if its my vanos? I only have 130,000 miles that seems odd that my vanos are warn out.
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Monday, January 3rd, 2011 AT 1:03 AM
Tiny
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When the vanos fails or when the cam sensor fails it will set a fault that generic readers dont always pick up, revisit the possibity that a proprietary scan tool will distinguish the issue once and for all.
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Monday, January 3rd, 2011 AT 4:09 PM
Tiny
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Yep code P1397 BMW Camshaft Position Sensor "B" Circuit (Bank 1)
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Friday, January 7th, 2011 AT 6:54 PM
Tiny
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You have a generic output that does not distinguish between either the exhaust or intake cam sensor. So I recommend you revisit my invitation to have the proprietary scan I mentioned performed. Or you could just replace them both and be done with it.
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Friday, January 7th, 2011 AT 7:58 PM
Tiny
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Sounds good to me I'll replace both and be done with it.
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Friday, January 7th, 2011 AT 8:05 PM
Tiny
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Have a happy new year mate!
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Friday, January 7th, 2011 AT 8:07 PM

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