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95dime/Derek,
I don't have a Peake reader, but I will list below the OBD II codes together with BMW's Fault Codes and descriptions, taken from the Bentley manual. Perhaps the Peake uses BMW's codes. Note that the codes refer to both banks, which implies that there is a problem upstream of the two cylinder banks (thus it affects both banks) and therefore is probably not related to individual sensor faults, for example.

OBD II.....BMW-FC............Description
P1188......227..................Fuel Control (Bank 1 Sensor 1)
P1189......228..................Fuel Control (Bank 2 Sensor 1)
P1250......None................?
P0170......202..................Fuel Trim (Bank 1)
P0173......203..................Fuel Trim (Bank 2)
P0150......153, 154, 155....O2 Sensor Circuit (Bank 2 Sensor 1)
P0130......150, 151, 152....O2 Sensor Circuit (Bank 1 Sensor 1)

EDIT NOTE: These codes are for my engine (M52 TU, Siemens DME MS42.1 from 6/1/1999 to 10/31/2000). I see in the Bentley manual that different OBD II codes may come up in other engines for the BMW Fault Codes listed above. For example, BMW codes 202, 203, 227 and 228 can trigger codes P0171 and P0174 (if too lean) or codes P0172 and P0175 (if too rich) for the M54 engine, Siemens DME MS43.0 from 4/1/2000 to 8/31/2001. Other engines may have additional codes. I will try to make a table of possible codes for the various BMW Fault Codes listed here.
i had codes po172 po175 also po313 and po455
,so i decided to look at the the same hose that was broken in your car,and i found that my has what it looks like a rip in it,unless that hose has a sleeveon it
 

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This broken hose will definitely set off a slew of codes, and it's interesting that you're getting these codes. As for buying it, I bought my part at pelicanparts.com for $10.50, and autohausaz.com has one about the same price, not including shipping. Your local BMW dealer probably sells it for less than $20. I'm glad this thread helped you out.
thanks
 
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