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Old 02-11-2019, 05:34 PM   #1
2nd Gear Member
wc123wc's Avatar
Join Date: Sep 2011
Location: Toronto
Posts: 262
E39 ECU tuning: SAP/cold start delete

The SAP (Secondary Air Pump) on my 2003 530i is failing and I want to delete it. I can do the mechanical work, but I need someone with experience to do the ECU tuning: to modify the ECU so that the car ignores the cold start code and I get no errors on the dash.

Do you know/recommend anyone?

Much appreciated!
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Old 02-16-2019, 11:42 PM   #2
4th Gear Member
Join Date: Oct 2006
Location: Newmarket, Ontario
Posts: 841
Have ready modified ecu for sale. Plug and play email for more info, I don't visit the forum very often anymore

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