Hey everyone!

I was hoping to gather some info on removing the SAP system, as well as either a sim or tune or other hardware I can use to get rid of the CEL caused by deletion.

I have a 1999 528i Touring with a M52tuB28/4L30-e combo. Only code it throws is p0412.

I has hoping I could be pointed in the right direction for what might be the best kit for simming the SAP so the DME doesn't throw the 412 code. If you think flashing a tune or using an OBDII tool or tune software is better, please let me know your recommendations.

Currently I only know about homemade Sims and the e36-electronics sim (he does sell for m52tu, emailed and asked), but definitely want some more opinions than just the first result of Google.

If this post also breaks forum rules please let me know and I will fix, delete, or post more appropriately.

Thank you all for all the help you guys can offer!