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Registered User
Join Date: Aug 2017
Posts: 2
codes read at Pep boys today

Hi I am a new guy on this forum I am also on two other Bimmer forums seeking help and advice on my 1997 Z3 2.8 5 speed convertible

Right now I have two codes

P0170 which is fuel trim, have no idea how to trim fuel or what to do to fix it

P1128 I could not find that code listed anywhere

Issues, The engine runs very rough at COLD start until the secondary air pump turns off which takes exactly two minutes then it runs as smooth as glass

MY other non related issue is the gear shift is very stiff and difficult to shift, I have heard I need to change the transmission fluid and use either amsoil or royal purple oil for that.


Last edited by Bilito; 08-23-2017 at 08:31 AM..
Old 08-23-2017, 07:49 AM
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Dmitry at Pelican Parts's Avatar
Join Date: Aug 2016
Location: Los Angeles, CA
Posts: 4,144
Hello Bill and welcome to the forum! Have you checked your plugs and coils? Do you feel any vibration when first starting the car...if may disappear when the car warms up. For the transmission issue, please take a look at the link below. This may be a good place to start troubleshooting. If you have any additional tech related questions, please feel free to post a Comment just below the article and one of our techs will get back to you with detailed info. Hope this helps and best of luck!

BMW Z3 Automatic Transmission Range Switch Replacement | 1996-2002 | Pelican Parts DIY Maintenance Article
Old 08-23-2017, 11:03 AM
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