[Artherj327]

Hi all,
I'm new here and very interested in getting my e90 remapped. I was wondering if anyone can tell me what I need to buy and what I need to download to get started. 
I also believe I may have an injector issue so I was wondering if INPA or some other software would be able to help me determine what is wrong.

[Twoone]

Hi all,
I'm new here and very interested in getting my e90 remapped. I was wondering if anyone can tell me what I need to buy and what I need to download to get started. 
I also believe I may have an injector issue so I was wondering if INPA or some other software would be able to help me determine what is wrong.

You need a device to read mapping from ECU. Depending of your ECU type there are a few different programs/interfaces.(for example m47 MPPS by OBD)
Then you need an editor to change the mapping like WINOLS or ECM Titanium. Both programs can be found here on the forum but are old versions.
And then most important very very mutch time reading and study if you want to do it yourself better to contact a known good tuner for a File for your car.

Yes INPA is very good software for fault finding also is ISTA. You can use the software with cheap K+DCAN Cable. If you want i can help you with installation by teamviewer