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View Full Version : Error code 121 - Hoehenadaption Fehler

sirius815
03-30-2018, 07:28 PM
Anybody ever come across this error? It's the only thing keeping my CEL on! :mad:
Jayrockstar
03-31-2018, 02:17 AM
You might be missing a number on the code.
Lots of codes start with 121...
Maybe your code is a 121x?
sirius815
03-31-2018, 02:18 AM
That's the code INPA gave me.

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Jayrockstar
03-31-2018, 02:20 AM
It translates to “height adaptation error”
I’ve not heard of it.
Wish I could help....
sirius815
03-31-2018, 02:22 AM
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.

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Jayrockstar
03-31-2018, 02:25 AM
Do you have an m42 or m44?
sirius815
03-31-2018, 02:25 AM
M44

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Jayrockstar
03-31-2018, 02:29 AM
I’ve got an extra maf for an m42.
:(