» Site Navigation | | » Recent Threads | | 1999 M3 Swap 09-07-2023 10:10 PM 05-02-2024 08:18 PM 6 Replies, 401,259 Views | | | | | 03-30-2018, 07:28 PM | #1 | Member Join Date: Dec 2017 Location: NoVA Posts: 49 | Error code 121 - Hoehenadaption Fehler Anybody ever come across this error? It's the only thing keeping my CEL on! | | | 03-31-2018, 02:17 AM | #2 | Junior Member Join Date: Jan 2013 Location: Kansas City Posts: 17 | You might be missing a number on the code. Lots of codes start with 121... Maybe your code is a 121x? | | | 03-31-2018, 02:18 AM | #3 | Member Join Date: Dec 2017 Location: NoVA Posts: 49 | That's the code INPA gave me. Sent from my Nexus 6 using Tapatalk | | | 03-31-2018, 02:20 AM | #4 | Junior Member Join Date: Jan 2013 Location: Kansas City Posts: 17 | It translates to “height adaptation error” I’ve not heard of it. Wish I could help.... | | | 03-31-2018, 02:22 AM | #5 | Member Join Date: Dec 2017 Location: NoVA Posts: 49 | Yes, that is correct. I'm sure it has to do with air density more than anything which may point to the MAF. I am under the impression a bad MAF would throw different codes and have poor off-idle performance as well. Sent from my Nexus 6 using Tapatalk | | | 03-31-2018, 02:25 AM | #6 | Junior Member Join Date: Jan 2013 Location: Kansas City Posts: 17 | Do you have an m42 or m44? | | | 03-31-2018, 02:25 AM | #7 | Member Join Date: Dec 2017 Location: NoVA Posts: 49 | M44 Sent from my Nexus 6 using Tapatalk | | | 03-31-2018, 02:29 AM | #8 | Junior Member Join Date: Jan 2013 Location: Kansas City Posts: 17 | I’ve got an extra maf for an m42. | | | | Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | | Posting Rules | You may not post new threads You may not post replies You may not post attachments You may not edit your posts HTML code is Off | | | |
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