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2001 BMW 330i Check Eng Light - 2 Codes from Peake Research

Customer Question

2001 BMW 330i Check Eng Light - 2 Codes from Peake Research Scan tool E3 "Oxy Sensor Adaptation Limit, Cly#1-3" and E4 "Oxy Sensor Adaptation Limit, Cly#3-6" When I reset engine computer the same codes come back after a short while. Any idea on what problem might be?
Submitted: 6 years ago.
Category: BMW
Customer: replied 6 years ago.

2001 BMW 330i


Already Tried:
replaced hot air recirc valve. replaced gas cap.
Expert:  Jerry replied 6 years ago.

Hello and welcome to Just answer.com, Super mechanic here. About your vehicle.

 

You don't want to replace any of the 02 sensors yet, as there is a service bulletin that has to do with reprogramming the vehicle's computer for the 02 sensor related trouble codes. Here is what it states.

 

 

Engine Controls - MIL ON/O2 Sensor Fault Codes Stored
Notes
SI B 12 07 04
Engine Electrical

 

November 2004
Technical Service

 

This Service Information bulletin supersedes S.I. B12 07 04 dated August 2004.

[NEW] designates changes to this revision

SUBJECT
Oxygen Sensor Faults on M54, S54 and S62 Engines

 

MODEL
E46 and E53 X5 with M54 (MS43) from 09/00 up to 09/03
E46 M3 with S54 (MSS54) from 02/01 up to 09/03
E36/7 Z3 with M54 (MS43) or S54 (MSS54) from 09/00 up to 09/02
E39 with M54 (MS43) from 09/00 up to 06/03
E39 M5 and E52 Z8 with S62 (MSS52 from 09/99 - 07/03

 

SITUATION
"Service Engine Soon" light is illuminated and some of the following oxygen sensor faults codes may be stored in the DME fault memory:
M54 (MS43) Control (pre-cat) sensors
(25) 19 hex - 02 heater circuit, Bank 1
(55) 37 hex - 02 heater circuit, Bank 2
(150) 96 hex - 02 signal circuit, Bank 1
(151) 97 hex - 02 signal circuit, Bank 2
(188) BC hex - 02 plausibility, Bank 1
(189) BD hex - 02 plausibility, Bank 2
(235) EB hex - 02 trim control pre-cat, Bank1
(236) EC hex - 02 trim control pre-cat, Bank 2
M54 (MS43) Monitor (post-cat) sensors
(61) 3D hex - 02 heater circuit, Bank 1
(79) 4F hex - 02 heater circuit, Bank 2
(152) 98 hex - 02 signal circuit, Bank 1
(153) 99 hex - 02 signal circuit, Bank 2
(190) BE hex - 02 plausibility, Bank 1
(191) BF hex - 02 plausibility, Bank 2
(225) E1 hex - 02 trim control post-cat, Bank 1
(226) E2 hex - 02 trim control post-cat, Bank 2
S54 (MSS54)/S62 (MSS52) Control (pre-cat) sensors
(13) 0D hex - 02 signal circuit pre-cat, Bank 1
(12) 0C hex - 02 signal circuit pre-cat, Bank 2
(218) DA hex - Signal plausibility; Voltage range exceeded, Bank 1
(219) DB hex - Signal plausibility; Voltage range exceeded, Bank 2
S54 (MSS54)/S62 (MSS52) Monitor (post-cat) sensors
(13) OD hex - 02 voltage monitoring, Bank 1
(93) SD hex - 02 voltage monitoring, Bank 2

 

CAUSE
DME software.

 

CORRECTION
On a customer complaint basis only, clear fault memory and reprogram DME using DIS CD 38.0 or higher.

 

Important :With this programming update it is not necessary to replace the Oxygen Sensor(s) when the previously listed faults are set.

 

Expert:  jacob replied 6 years ago.

Hello, as "super mechanic" stated there is a bulletin regarding re-programming. However this involves heater circuits and voltage ranges. Your problems concern mixture adaptations. A common problem with your vehicle and engine is a torn intake boot. This is the boot at the throttle. The smaller one is common to split on the bend. This causes unmeter ed air into the engine and exhaust. This is what will trigger the faults you have.

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