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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 02-23-2015, 07:16 PM   #1
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Join Date: Dec 2012
Location: LI,NY/Athens,Ohio
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My Ride: E46 330ci
Weird code issue related to tune

So I have a tune supplied by OE tuning to clear codes for my headers and increase performance. Anyway it took forever for them to get the header codes cleared, and even after clearly stating that I wanted the secondary air pump to be deleted as well it still throws a code. I'm done with them after sending my Ecu back and forth many times.

Anyway. Originally I had headers and the secondary air pump removed when I installed the final tune. The only codes thrown then were for insufficient flow from the secondary air pump. That was annoying so i reinstalled it. However, now that the SAP code no longer reappears, codes P2270 and P2272 come up, aka the post cat o2's are "stuck lean". However....these are in my smugglers box in the engine compartment and are breathing air, not any exhaust. They just sit there, as I was instructed to hook them up to complete the circuit but not install them in the header. They never threw codes before I hooked back up the SAP. What gives? Waste of money, I kinda just want a EU2 flash so I have no check engine lights...

Anyway to fix this? Should I put them in the pipes?
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Old 02-23-2015, 07:18 PM   #2
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Here are pics of the scanner Click image for larger version

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Old 02-24-2015, 01:17 AM   #3
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MS43 or MS45?
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Old 02-24-2015, 08:35 PM   #4
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To be honest I forget. It's a 2002 330ci. Idk if you can tell from that but I will have a look when I have the chance. Thanks
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Old 02-25-2015, 01:37 AM   #5
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Should be MS43, which is already covered pretty good Have a look at the threads in my signature
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