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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 03-04-2010, 06:08 PM   #1
lkstaack
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BMW Codes: Need BMW Tech Help

I recently purchased the Autoenginuity scanner with enhanced BMW support. One of the great things about enhanced support is that it provides BMW factory codes. One of the bad things is that BMW refuses to publish their trouble code tables. So, while the AE scanner has reported two specific BMW codes, I don't know what they mean. I am hoping that a BMW Technician can verify my google search.

A search seems to indicate that "28DD" refers to a problem with the Secondary Air Injection System and that "2770" refers to a problem with fuel metering. Can someone with expert knowledge verify that? Thanks.
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Old 03-04-2010, 06:25 PM   #2
N4NOOK
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http://www.obd-codes.com/trouble_codes/bmw/
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Old 03-04-2010, 07:09 PM   #3
lkstaack
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Originally Posted by N4NOOK View Post
People who know more about these things than I do tell me those are not factory codes; i.e. the codes that a GT-1 would report.
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Old 03-04-2010, 08:08 PM   #4
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2770: Secondary Air Mass Flow Sensor Circuit
28DD: Air Mass System (or, according to my Bentley, barometric pressure plausibility)
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04 IR 330i ZHP | ESS TS2+ SC | MagnaFlow "headers" | KMS 3.64 LSD | AST 4100 550/650| APEX ARC-8 18x9 | H&R front sway bar | Vorshlag camber plates, RTAB limiters | TMS subframe & swaybar reinforcements | UUC SSK & DSSR | UUC TM & TME | BW motor mounts | Dinan strut & shock tower bars | vaio 4-bolt oil pump
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Old 03-04-2010, 09:16 PM   #5
lkstaack
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Originally Posted by TxZHP04 View Post
2770: Secondary Air Mass Flow Sensor Circuit
28DD: Air Mass System (or, according to my Bentley, barometric pressure plausibility)
This stuff is in the Bentley Manual? Jeez, I need to crack it open!
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Old 03-04-2010, 10:33 PM   #6
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Originally Posted by lkstaack View Post
This stuff is in the Bentley Manual? Jeez, I need to crack it open!
It's all in the Bentley!
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